Month: September 2021

SDS of cas: 150-76-5. Hari, DP; Pisella, G; Wodrich, MD; Tsymbal, AV; Tirani, FF; Scopelliti, R; Waser, J in [Hari, Durga Prasad; Pisella, Guillaume; Wodrich, Matthew D.; Tsymbal, Artem, V; Waser, Jerome] Ecole Polytech Fed Lausanne, EPFL SB ISIC LCSO, Lab Catalysis & Organ Synth, BCH 1402, CH-1015 Lausanne, Switzerland; [Hari, Durga Prasad] Ecole Polytech Fed Lausanne, Inst Chem & Chem Engn, EPFL SB ISIC GE, BCH 2111, CH-1015 Lausanne, Switzerland; [Tirani, Farzaneh Fadaei; Scopelliti, Rosario] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England published Low-Temperature Intramolecular [4+2] Cycloaddition of Allenes with Arenes for the Synthesis of Diene Ligands in 2021.0, Cited 56.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5.

The intramolecular [4+2] cycloaddition between arenes and allenes first reported by Himbert gives rapid access to rigid polycyclic scaffolds. Herein, we report a one-pot oxyalkynylation/cycloaddition reaction proceeding under mild conditions (23-90 degrees C) and providing complex polycyclic architectures with high efficiency, and atom and step economy. The bicyclo[2.2.2]octadiene products were obtained with a wide variety of useful functional groups and were successfully applied as chiral ligands for metal catalysis. Computational studies gave a first rationalization of the low activation energy for the cycloaddition based on counter-intuitive favorable dispersive interactions in the transition state.

SDS of cas: 150-76-5. About Mequinol, If you have any questions, you can contact Hari, DP; Pisella, G; Wodrich, MD; Tsymbal, AV; Tirani, FF; Scopelliti, R; Waser, J or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: 123-11-5. Authors Ali, S; Khan, A in ROYAL SOC CHEMISTRY published article about in [Ali, Saghir; Khan, Abu T.] Indian Inst Technol Guwahati, Dept Chem, Gauhati 781039, Assam, India in 2021, Cited 17. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

An efficient and expedient synthetic protocol is reported for the synthesis of 2,3-diarylquinoline derivatives from readily available aryl amines, aryl aldehydes and styrene oxides using 10 mol% copper(ii) triflate by employing three-component reaction. This approach involves the reaction between the in situ generated imine (derived from the aryl amine and aryl aldehyde) and styrene oxide, which enables the formation of the desired products. The present method has several advantages such as high atom-economy, high regioselectivity, easy handling, consecutive one C-N and two C-C bond formation, shorter reaction time and broader substrate scope with good yields.

Recommanded Product: 123-11-5. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Ali, S; Khan, A or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

SDS of cas: 123-11-5. Venugopala, KN; Deb, PK; Pillay, M; Chopra, D; Chandrashekharappa, S; Morsy, MA; Aldhubiab, BE; Attimarad, M; Nair, AB; Sreeharsha, N; Kandeel, M; Venugopala, R; Mohanlall, V in [Venugopala, Katharigatta N.; Morsy, Mohamed A.; Aldhubiab, Bandar E.; Attimarad, Mahesh; Nair, Anroop B.; Sreeharsha, Nagaraja] King Faisal Univ, Coll Clin Pharm, Dept Pharmaceut Sci, Al Hasa 31982, Saudi Arabia; [Venugopala, Katharigatta N.; Mohanlall, Viresh] Durban Univ Technol, Dept Biotechnol & Food Technol, ZA-4001 Durban, South Africa; [Deb, Pran Kishore] Philadelphia Univ, Fac Pharm, Dept Pharmaceut Sci, Amman 19392, Jordan; [Pillay, Melendhran] Inkosi Albert Luthuli Cent Hosp, Dept Microbiol, Natl Hlth Lab Serv, KZN Acad Complex, ZA-4001 Durban, South Africa; [Chopra, Deepak] Indian Inst Sci Educ & Res Bhopal, Dept Chem, Bhopal By Pass Rd, Bhopal 462066, Madhya Pradesh, India; [Chandrashekharappa, Sandeep] GKVK, Inst Stem Cell Biol & Regenerat Med, TIFR, NCBS, Bangalore 560065, Karnataka, India; [Morsy, Mohamed A.] Menia Univ, Fac Med, Dept Pharmacol, El Minia 61511, Egypt; [Sreeharsha, Nagaraja] Vidya Siri Coll Pharm, Dept Pharmaceut, Off Sarjapura Rd, Bengaluru 560035, India; [Kandeel, Mahmoud] King Faisal Univ, Coll Vet Medi Cine, Dept Biomed Sci, Al Hasa 31982, Saudi Arabia; [Kandeel, Mahmoud] Kafrelsheikh Univ, Fac Vet Med, Dept Pharmacol, Kafrelsheikh 33516, Egypt; [Venugopala, Rashmi] Univ KwaZulu Natal, Dept Publ Hlth Med, Howard Coll Campus, ZA-4001 Durban, South Africa published 4-Aryl-1,4-Dihydropyridines as Potential Enoyl-Acyl Carrier Protein Reductase Inhibitors: Antitubercular Activity and Molecular Docking Study in 2021, Cited 93. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

Background: Tuberculosis remains one of the most deadly infectious diseases worldwide due to the emergence of multi-drug resistance (MDR) and extensively drug resistance (XDR) strains of Mycobacterium tuberculosis (MTB). Aims: Currently, available drugs are getting resistant and toxic. Hence, there is an urgent need for the development of potent molecules to treat tuberculosis. Materials and Methods: Herein, the screening of a total of eight symmetrical 1,4-dihydropyridine (1,4-DHP) derivatives (4a-4h) was carried out for whole-cell anti-TB activity against the susceptible H37Rv and MDR strains of MTB. Results and Discussion: Most of the compounds exhibited moderate to excellent activity against the susceptible H37Rv. Moreover, the most promising compound 4f (against H37Rv) having para-trifluoromethyl phenyl group at 4-position and bis para-methoxy benzyl ester group at 3- and 5-positions of 1,4- dihydropyridine pharmacophore, exhibited no toxicity, but demonstrated weak activity against MTB strains resistant to isoniazid and rifampicin. In light of the inhibitory profile of the title compounds, enoyl-acyl carrier protein reductase (InhA) appeared to be the appropriate molecular target. A docking study of these derivatives against InhA receptor revealed favorable binding interactions. Further, in silico predicted ADME properties of these compounds 4a-4h were found to be in the acceptable ranges, including satisfactory Lipinski’s rule of five, thereby indicating their potential as drug-like molecules. Conclusion: In particular, the 1,4-DHP derivative 4f can be considered an attractive lead molecule for further exploration and development of more potent anti-TB agents as InhA inhibitors.

SDS of cas: 123-11-5. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Venugopala, KN; Deb, PK; Pillay, M; Chopra, D; Chandrashekharappa, S; Morsy, MA; Aldhubiab, BE; Attimarad, M; Nair, AB; Sreeharsha, N; Kandeel, M; Venugopala, R; Mohanlall, V or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article A regioselective [4+2] annulation approach to 5-acylindolizine-7-carbonitriles: generation of poly-substituted pyridines WOS:000659907800001 published article about BIOLOGICAL EVALUATION; CHEMICAL SPACE; INDOLIZINES; DERIVATIVES; INHIBITORS; CASCADE; YLIDES in [Kim, Sunmi; Lee, Jeong Hwa; Kim, Ikyon] Yonsei Univ, Coll Pharm, 85 Songdogwahak Ro, Incheon 21983, South Korea; [Kim, Sunmi; Lee, Jeong Hwa; Kim, Ikyon] Yonsei Univ, Yonsei Inst Pharmaceut Sci, 85 Songdogwahak Ro, Incheon 21983, South Korea; [Yoon, Seok Hyun] Yonsei Univ, Grad Program Ind Pharmaceut Sci, 85 Songdogwahak Ro, Incheon 21983, South Korea in 2021, Cited 46. Recommanded Product: 4-Methoxybenzaldehyde. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

The reaction of beta-ketonitrile and N-substituted pyrrole-2-carboxaldehyde in the presence of piperidinium acetate in CH3CN permitted regioselective access to 5-acylindolizine-7-carbonitrile through a domino Knoevenagel condensation-intramolecular aldol cyclization sequence. A wide range of new indolizine derivatives with a poly-functionalized pyridine moiety were readily synthesized in an atom-economical fashion, thereby expanding the indolizine chemical space for further applications.

Recommanded Product: 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Kim, S; Lee, JH; Yoon, SH; Kim, I or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Mechanistic Studies on Photoinduced Catalytic Olefin Migration Reactions at the Pd(II) Centers of a Porous Crystal, Metal-Macrocycle Framework WOS:000600657000001 published article about ORGANIC FRAMEWORKS; HYDROGEN STORAGE; ISOMERIZATION; DIMERIZATION; ADSORPTION; ETHYLENE in [Yonezawa, Hirotaka; Han, Mengying; Tashiro, Shohei; Shionoya, Mitsuhiko] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan; [Shiraogawa, Takafumi; Ehara, Masahiro] Inst Mol Sci, Okazaki, Aichi 4448585, Japan; [Shiraogawa, Takafumi; Ehara, Masahiro] SOKENDAI, Okazaki, Aichi 4448585, Japan in 2021.0, Cited 47.0. SDS of cas: 123-11-5. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

Porous crystals with well-defined active metal centers on the pore surface have high potential as heterogeneous metal catalysts. We have recently demonstrated that a porous molecular crystal, metal-macrocycle framework (MMF), catalyzes olefin migration reactions by photoactivation of its (PdCl2)-Cl-II moieties exposed on the crystalline channel surface. Herein we report a mechanistic study of the photoinduced olefin migration reactions at the Pd-II active centers of MMF. Several experiments, including a deuterium scrambling study, revealed that olefin migration is catalyzed via an alkyl mechanism by in situ generated Pd-H species on the channel surface during photoirradiation. This proposed mechanism was further supported by DFT and ONIOM calculations.

About 4-Methoxybenzaldehyde, If you have any questions, you can contact Yonezawa, H; Shiraogawa, T; Han, MY; Tashiro, S; Ehara, M; Shionoya, M or concate me.. SDS of cas: 123-11-5

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2021.0 CHEM PHYS LETT published article about POLY(METHYL METHACRYLATE); CONJUGATED POLYMERS; PPV; MORPHOLOGY; CHAIN; PHOTOLUMINESCENCE; LUMINESCENCE; AGGREGATION; DEGRADATION; EXCITATIONS in [Kumar, Sangeetha Ashok; Shankar, Jaya Seeli; Periyasamy, Bhuvana K.; Nayak, Sanjay K.] Cent Inst Petrochem Engn & Technol CIPET, Sch Adv Polymer Res SARP ARSTPS, Chennai, Tamil Nadu, India; [Gouthaman, Siddan] CSIR Cent Leather Res Inst CLRI, Ind Chem Polymer Div, Chennai, Tamil Nadu, India in 2021.0, Cited 30.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5. Formula: C7H8O2

Light Emitting Polymers (LEPs) have gained attention in optoelectronics. However, stability and regulation of emission color remain a challenge. This study aims to overcome the challenge by formulating a Polymer Blend (PB) which consists of a LEP ? poly [2-methoxy,5-(2-ethylhexyloxy)1,4-phynylenevinylene (MEH-PPV) and a non-conjugated polymer ? poly(methyl methacrylate) (PMMA). A simple approach of in situ polymerization of the non-conjugated polymer in the MEH-PPV solution leads to alteration of size of the MEH-PPV polymer chain and modified the emission color from red-orange to bluish-green. The barrier properties of PMMA improve the stability of PB in an ambient environment with unnoticeable luminescence loss. This type of PB shall find application in Organic Light-Emitting Devices.

Formula: C7H8O2. About Mequinol, If you have any questions, you can contact Kumar, SA; Gouthaman, S; Shankar, JS; Periyasamy, BK; Nayak, SK or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: Benzyl Alcohol. In 2019.0 MATER TODAY-PROC published article about GOLD NANOPARTICLES; GREEN SYNTHESIS; EXTRACT in [Warghane, Umesh K.; Dhankar, Raksha P.] Sardar Patel Mahavidyalaya, Dept Chem, Ctr Higher Learning & Res, Chandrapur 442402, Maharashtra, India in 2019.0, Cited 12.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

In the present investigation, green synthesis of silver nanoparticles from plant extract of Ehretia laevis have been studied for their catalytic performance towards the oxidation of alcohols containing aromatic ring into the corresponding aldehydes. The synthesis of nanoparticles and purity was confirmed by UV-visible analysis, scanning electron microscopy (SEM), transmission electron microscope analysis (TEM) and XRD analysis. SEM analysis showed cubical and relatively uniform shape of nanoparticles and XRD analysis revealed the face centred cubic system and crystalline nature of silver nanoparticle (AgNPs). The excellent catalytic oxidation process of aromatic alcohols by silver nanoparticles offered the merit of being a short reaction time, efficient, easy and clean synthetic path. The remarkable activity of the catalyst was exhibited without the significant loss. The catalytic route suggests the notable features of green approach, higher yields and recyclability. (C) 2019 Elsevier Ltd. All rights reserved.

Recommanded Product: Benzyl Alcohol. About Benzyl Alcohol, If you have any questions, you can contact Warghane, UK; Dhankar, RP or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: 100-51-6. Recently I am researching about 1-DEOXY-D-XYLULOSE 5-PHOSPHATE SYNTHASE; BENZOIC-ACID BIOSYNTHESIS; TERPENE SYNTHASES; FLORAL SCENT; LINALOOL SYNTHASE; FUNCTIONAL-CHARACTERIZATION; (E)-BETA-OCIMENE SYNTHASE; ARABIDOPSIS-THALIANA; MYRCENE SYNTHASE; GENE-EXPRESSION, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31572165]. Published in WILEY in HOBOKEN ,Authors: Tian, JP; Ma, ZY; Zhao, KG; Zhang, J; Xiang, L; Chen, LQ. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

Wintersweet (Chimonanthus praecox L.) is an important ornamental plant in China with a pleasant floral scent. To explore the potential mechanisms underlying differences in the fragrances among genotypes of this plant, we analyzed floral volatile organic compounds (VOCs) from two different genotypes: SW001, which has little to no fragrance, and the scented genotype H29. The major VOCs in H29 were linalool, trans-beta-ocimene, benzyl acetate, methyl salicylate, benzyl alcohol (BAlc) and methyl benzoate. The most important aroma-active compound in H29, linalool, was emitted at a low concentration in SW001, which had markedly higher levels of trans-beta-ocimene than H29. Next, to investigate scent biosynthesis, we analyzed the transcriptome and proteome of fully open flowers of the two genotypes. A total of 14 443 differentially expressed unigenes and 196 differentially expressed proteins were identified. Further analyses indicated that 56 differentially expressed genes involved in the terpenoid and benzenoid biosynthesis pathways might play critical roles in regulating floral fragrance difference. Disequilibrium expression of four terpene synthase genes resulted in diverse emission of linalool and trans-beta-ocimene in both genotypes. In addition, the expressions of two CpMYC2 transcription factors were both upregulated in H29, implying that they may regulate linalool production. Notably, 16 of 20 genes in the benzenoid biosynthesis pathway were downregulated, corresponding to the relatively low level of benzenoid production in SW001. The lack of benzyl acetate might indicate that SW001 may lack substrate BAlc or functional acetyl-CoA:benzylalcohol acetyltransferase.

About Benzyl Alcohol, If you have any questions, you can contact Tian, JP; Ma, ZY; Zhao, KG; Zhang, J; Xiang, L; Chen, LQ or concate me.. Recommanded Product: 100-51-6

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article A green approach for aerobic oxidation of benzylic alcohols catalysed by Cu-I-Y zeolite/TEMPO in ethanol without additional additives WOS:000609189100025 published article about SELECTIVE OXIDATION; HIGHLY EFFICIENT; COPPER NANOPARTICLES; GALACTOSE-OXIDASE; GRAPHENE OXIDE; COMPLEXES; LIGAND; CONVERSION; CHEMISTRY; SYSTEM in [Senthilkumar, Samuthirarajan; Zhong, Wei; Natarajan, Mookan; Lu, Chunxin; Liu, Xiaoming] Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing, Zhejiang, Peoples R China; [Xu, Binyu] Nanchang Univ, Sch Chem, Nanchang, Jiangxi, Peoples R China in 2021, Cited 51. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5. Quality Control of 4-Methoxybenzaldehyde

An efficient and green protocol for aerobic oxidation of benzylic alcohols in ethanol using Cu-I-Y zeolite catalysts assisted by TEMPO (TEMPO = 2,2,6,6-tetramethyl-1-piperidine-N-oxyl) as the radical co-catalyst in the presence of atmospheric air under mild conditions is reported. The Cu-I-Y zeolite prepared via ion exchange between CuCl and HY zeolite was fully characterized by a variety of spectroscopic techniques including XRD, XPS, SEM, EDX and HRTEM. The incorporation of Cu(i) into the 3D-framework of the zeolite rendered the catalyst with good durability. The results of repetitive runs revealed that in the first three runs, there was hardly a decline in activity and a more substantial decrease in yield was observed afterwards, while the selectivity remained almost unchanged. The loss in activity was attributed to both the formation of CuO and the bleaching of copper into the liquid phase during the catalysis, of which the formation of CuO was believed to be the major contributor since the bleaching loss for each run was negligible (<2%). In this catalytic system, except TEMPO, no other additives were needed, either a base or a ligand, which was essential in some reported catalytic systems for the oxidation of alcohols. The aerobic oxidation proceeded under mild conditions (60 degrees C, and 18 hours) to quantitatively and selectively convert a wide range of benzylic alcohols to corresponding aldehydes, which shows great potential in developing green and environmentally benign catalysts for aerobic oxidation of alcohols. The system demonstrated excellent tolerance against electron-withdrawing groups on the phenyl ring of the alcohols and showed sensitivity to steric hindrance of the substrates, which is due to the confinement of the pores of the zeolite in which the oxidation occurred. Based on the mechanism reported in the literature for homogenous oxidation, a mechanism was analogously proposed for the aerobic oxidation of benzylic alcohols catalysed by this Cu(i)-containing zeolite catalyst. Quality Control of 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Senthilkumar, S; Zhong, W; Natarajan, M; Lu, CX; Xu, BY; Liu, XM or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Design, synthesis and assessment of new series of quinazolinone derivatives as EGFR inhibitors along with their cytotoxic evaluation against MCF7 and A549 cancer cell lines WOS:000651228800015 published article about GROWTH-FACTOR RECEPTOR; BIOLOGICAL EVALUATION in [Aziz, Marian W.; Elgendy, Adel A.] Misr Int Univ, Fac Pharm, Dept Pharmaceut Chem, Cairo, Egypt; [Kamal, Aliaa M.; Mohamed, Khaled O.] Cairo Univ, Fac Pharm, Dept Pharmaceut Organ Chem, Cairo, Egypt; [Kamal, Aliaa M.] October Univ Modern Sci & Arts MSA, Fac Pharm, Dept Pharmaceut Chem, Giza, Egypt in 2021.0, Cited 43.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9. COA of Formula: C9H10O3

New acetamide (IV a-e) and 1,3-thiazolidinone derivatives (VII a-e) were designed, synthesized and assessed for their cytotoxic activity against MCF-7 and A549 cell lines along with their lead compounds (erlotinib and gefitinib). The newly designed compounds were prepared according to the adopted procedures in schemes 1 and 2 from their quinazolinone parents. 3D QSAR pharmacophore and docking molecular modeling protocols were conducted using Discovery Studio program, beside a full biological assay for these compounds. The cytotoxicity evaluation demonstrated that compounds IVb, IVc, VIIa, VIIb, VIId exhibited potent cytotoxic activities against both MCF-7 and A549 cell lines. Moreover, the molecular modeling studies corroborated to the affinity of the compounds towards EGFR. Consequently, these five compounds were then screened for their EGFR inhibition and evaluated as well for their toxicity to normal cells, which revealed that the acetamide derivative IVc and the thiazolidinone derivative VIIa were the most potent and least toxic. DNA flow cytometry analysis was conducted for compounds IVc and VIIa, which indicated that they both induced arrest at G2/M phase of the cell cycle.

COA of Formula: C9H10O3. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Aziz, MW; Kamal, AM; Mohamed, KO; Elgendy, AA or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles