Day: November 10, 2022

On October 22, 2001, Misra, A. K.; Fukuda, M.; Hindsgaul, O. published an article.COA of Formula: C16H19NO6S The title of the article was Efficient synthesis of lactosaminylated core-2 O-glycans. And the article contained the following:

A series of lactosaminylated oligosaccharides found in mucin type O-glycans was synthesized using a generalized block strategy. The synthesis involved the addition of a protected lactosamine donor to a partially protected T-disaccharide derivative The nonreducing galactose residues of the deblocked oligosaccharide products could be removed by β-galactosidase from jack bean to produce the corresponding GlcNAc terminated compounds A series of tri- to hexasaccharides was thus efficiently produced. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).COA of Formula: C16H19NO6S

The Article related to mucin glycan aminodeoxy oligosaccharide preparation galactosidase, lactosaminyl oligosaccharide preparation glycosylation, Carbohydrates: Amines and other aspects.COA of Formula: C16H19NO6S

Referemce:
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

On January 31, 1998, Kajihara, Yasuhiro; Kodama, Hisashi; Endo, Tsuyoshi; Hashimoto, Hironobu published an article.Recommanded Product: 130539-43-4 The title of the article was Novel features of acceptor recognition by β-(1â†?)-galactosyltransferase. And the article contained the following:

In order to understand how β-(1â†?)-galactosyltransferase recognizes its glycosyl acceptor, substrate specificities were investigated using synthetic 2-acetamido-2-deoxy-D-glucopyranose (N-acetylglucosamine) derivatives in which the 1-, 2-, 3-, 4-, and 6-positions were systematically substituted. The hydroxyl groups at the 3-, 4-, and 6-positions were substituted by fluoride, thiol or hydrogen. For modification of the 2- position, the acetamido group was converted to ethylamino-, N-methylacetamido- and acetyloxy groups. For the anomeric position, several sugar residues were introduced as the aglycon of N-acetylglucosaminide. Galactose transfer assay using synthetic N-acetylglucosamine derivatives indicated that both the acetamido group and the 4-hydroxyl group were essential for binding of N-acetylglucosamine toward the β-(1â†?)-galactosyltransferase. The assay also showed that the N-acetylglucosamine having a large substitution at the 6-position can be recognized as an acceptor. It is suggested that in this case the bulky substituent is positioned away from the catalytic site or out of enzyme. Since the 2-acetamido and the 4-hydroxyl group are essential for recognition, the side composed of the 2, 3, and 4-positions may face the acceptor-binding site. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).Recommanded Product: 130539-43-4

The Article related to acetamidodeoxyglucopyranose substrate specificity galactosyltransferase, galactosyltransferase glycosyl acceptor recognition, Carbohydrates: Amines and other aspects.Recommanded Product: 130539-43-4

Referemce:
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

On April 26, 2004, Cirla, Alessandra; McHale, Angela R.; Mann, John published an article.HPLC of Formula: 130539-43-4 The title of the article was Synthesis of analogues of calicheamicin and neocarzinostatin chromophore. And the article contained the following:

The work presents a synthetic route to the CD ring of calicheamicin and in the case of neocarzinostatin an approach to a functionalized cyclopentane-1,3-diol containing the naturally occurring naphthoate and a glucosamine motif. In the case of the NCS derivative some biol. activity (cytotoxicity) was observed The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).HPLC of Formula: 130539-43-4

The Article related to cyclopentane diol calicheamicin analog preparation anticancer, neocarzinostatin chromophore preparation anticancer, glucosamine cyclopentane diol preparation, Carbohydrates: Amines and other aspects.HPLC of Formula: 130539-43-4

Referemce:
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

On March 31, 2003, Sarkar, Kakali; Mukherjee, Indrani; Roy, Nirmolendu published an article.Computed Properties of 130539-43-4 The title of the article was Synthesis of the trisaccharide repeating unit of the O-antigen related to the enterohemorrhagic Escherichia coli type O26:H. And the article contained the following:

L-Fucose was converted to the 2-azido-2-deoxy-L-fucose derivative, which together with the monosaccharide synthons prepared from L-rhamnose and D-glucosamine hydrochloride were utilized for the synthesis of the p-ethoxyphenyl glycoside of the trisaccharide repeating unit of the antigen from enterohemorrhagic Escherichia coli type O26:H. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).Computed Properties of 130539-43-4

The Article related to fucopyranosyl glucopyranosyl rhamnopyranoside trisaccharide synthesis repeating unit escherichia coli, trisaccharide repeating unit synthesis antigen escherichia coli, Carbohydrates: Amines and other aspects.Computed Properties of 130539-43-4

Referemce:
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

Traboni, Serena; Bedini, Emiliano; Giordano, Maddalena; Iadonisi, Alfonso published an article in 2015, the title of the article was Three Solvent-Free Catalytic Approaches to the Acetal Functionalization of Carbohydrates and Their Applicability to One-Pot Generation of Orthogonally Protected Building Blocks.SDS of cas: 130539-43-4 And the article contains the following content:

Three alternative protocols were developed to carry out the selective installation of acetal groups on carbohydrates and polyols under mildly acidic, solvent-free conditions. One protocol is based on a diol/aldehyde condensation at room temperature, with an acetolysis process serving for the activation of the carbonyl component. A second approach is based on an orthoester-mediated activation of the carbonyl component at high temperature The third protocol is instead entailing a transacetalation mechanism. Combination of these methods allows a wide set of acetal-protected building blocks to be accessed in short times under very simple exptl. conditions working under air. The scope of the latter two approaches was also extended to unusual one-pot synthetic sequences leading to concomitant Fischer glycosidation/acetal protection of reducing sugars. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).SDS of cas: 130539-43-4

The Article related to condensation transacetalation glycosylation catalyst glycoside preparation, Carbohydrates: Glycosides and other aspects.SDS of cas: 130539-43-4

Referemce:
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

Peters, J. L.; Wesselius, J. C.; Georghiou, K. C.; Kendrick, R. E.; Van Tuinen, A.; Koornneef, M. published an article in 1991, the title of the article was The physiology of photomorphogenetic tomato mutants.Product Details of 130539-43-4 And the article contains the following content:

A review with 37 references Photomorphogenesis of higher plants is a complex process resulting from the co-action of at least 3 different photoreceptors: phytochrome, a blue light (B)/UV-A photoreceptor (cryptochrome) and a UV-B photoreceptor. The existence of multiple photoreceptor types, e.g. type I (PI) or light-labile phytochrome and type II (PII) or light-stable phytochrome, adds to the complexity. The assignment of specific functions to the distinct mol. species of the photoreceptor is therefore being studied with the aid of photomorphogenetic mutants in which certain parts of the morphogenetic pathway are eliminated or altered. The relevance of the changed part in the mutant is directly indicated by its difference in response compared to its isogenic wild type. Mutants can be found (isolated) from natural populations or varieties (cultivars) or more efficiently after mutagenic treatment: using e.g. chems., irradiation; somaclonal variation; transposon insertion; transformation; introduction of antisense RNA. Photomorphogenetic mutants can be divided into three groups: photoreceptor mutants, lacking the photoreceptor or containing a modified photoreceptor which is non-functional; transduction chain mutants and response mutants. The first two will be pleiotropic for all responses regulated by the photoreceptor, while the latter are modified with respect to particular responses. Tomato (Lycospersicon esculentum) has several features which make it suitable for genetic anal. It is widely studied since it is a crop species of economic importance and many mutants are available. In addition it has a relatively small genome, is diploid with 12 chromosomes, is self pollinating, individual plants producing a large number (≈2000) of relatively large seeds which result in seedlings suitable for physiol. anal. and it is amenable for Agrobacterium-mediated transformation. Mutants of tomato which are important for the study of photomorphogenesis are discussed. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).Product Details of 130539-43-4

The Article related to review tomato photomorphogenesis mutant, Plant Biochemistry: Reviews and other aspects.Product Details of 130539-43-4

Referemce:
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

Bremer, Paul T.; Xue, Song; Janda, Kim D. published an article in 2016, the title of the article was Picolinic acids as β-exosite inhibitors of botulinum neurotoxin A light chain.Application of 1256359-96-2 And the article contains the following content:

In developing small-mol. inhibitors of botulinum neurotoxin serotype A light chain (BoNT/A LC), substituted picolinic acids were identified. Extensive investigation into the SAR of the picolinic acid scaffold revealed 5-(1-butyl-4-chloro-1H-indol-2-yl)picolinic acid (I), which possessed low micromolar activity against BoNT/A. Kinetic and docking studies demonstrated binding of I to the β-exosite: a largely unexplored site on the LC that holds therapeutic relevance for botulism treatment. The experimental process involved the reaction of 4-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole(cas: 1256359-96-2).Application of 1256359-96-2

The Article related to picolinate beta exosite inhibitor botulinum neurotoxin a light chain, Toxicology: Toxins and Venoms and other aspects.Application of 1256359-96-2

Referemce:
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

On January 11, 1996, Reddy, Gurijala V.; Jain, Rakesh K.; Locke, Robert D.; Matta, Khushi L. published an article.Related Products of 130539-43-4 The title of the article was Synthesis of precursors for the dimeric 3-O-SO3Na LewisX and LewisA structures. And the article contained the following:

Stereoselective syntheses of 3-O-SO3Na-β-Gal-(1→4)-β-GlcNAc-(1→3)-β-Gal-(1→4)-GlcNAc-β-OBn (I) and 3-O-SO3Na-β-Gal-(1→3)-β-GlcNAc-(1→3)-β-Gal-(1→3)-β-GlcNAc-(1→3)-β-Gal-(1→4)-Glc-β-OBn (II) were accomplished through the use of two novel glycosyl donors, namely, Et O-(2,6-di-O-acetyl-3,4-O-isopropylidene-β-D-galactopyranosyl)-(1→4)-3-O-acetyl-2-deoxy-2-phthalimido-1-thio-6-O-trimethylacetyl-β-D-glucopyranoside (III) and Et O-(2,6-di-O-acetyl-3,4-O-isopropylidene-β-D-galactopyranosyl)-(1→3)-4-O-acetyl-2-deoxy-2-phthalimido-1-thio-6-O-trimethylacetyl-β-D-glucopyranoside (IV). The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).Related Products of 130539-43-4

The Article related to lewis oligosaccharide precursor stereoselective synthesis, Carbohydrates: Oligosaccharides and other aspects.Related Products of 130539-43-4

Referemce:
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

On July 24, 1992, Spijker, Nynke M.; Westerduin, Pieter; Van Boeckel, Constant A. A. published an article.Related Products of 130539-43-4 The title of the article was Synthesis of a pentasaccharide and a heptasaccharide corresponding to an ovarian glycoprotein; studies towards glycosylations. And the article contained the following:

Oligosaccharides I (R = H, R1), which correspond to an ovarian O-glycoprotein, were prepared via glycosidation reactions. The experimental process involved the reaction of Ethyl 2-deoxy-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-thio-beta-D-glucopyranoside(cas: 130539-43-4).Related Products of 130539-43-4

The Article related to oligosaccharide preparation fragment ovarian glycoprotein, Carbohydrates: Oligosaccharides and other aspects.Related Products of 130539-43-4

Referemce:
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