Tag: 400-500

Related Products of 99409-32-2On September 21, 1998 ,《Application of β-1,4-galactosyltransferase in the synthesis of complex branched-chain oligosaccharide mimics of fragments of the capsular polysaccharide of Streptococcus pneumoniae type 14》 was published in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry. The article was written by Niggemann, Jutta; Kamerling, Johannis P.; Vliegenthart, Johannes F. G.. The article contains the following contents:

The chemoenzymic synthesis is described of β-D-Galp-(1→4)-β-D-Glcp-(1→6)-[β-D-Galp-(1→4)]-β-D-GlcpNAc-(1→O[CH2]3O→4)-β-D-Glcp-(1→OCH2CH:CH2) and β-D-Galp-(1→4)-β-D-GlcpNAc-(1→O[CH2]3O→4)-β-D-Glcp-(1→6)-[β-D-Galp-(1→4)]-β-D-GlcpNAc-(1→O[CH2]3O→4)-β-D-Glcp-(1→OCH2-CH:CH2), representing hexa- and octasaccharide mimics of fragments of the Streptococcus pneumoniae type 14 polysaccharide. In a chem. approach the intermediate linear oligosaccharide mimics I (R1 = CH2CH:CH2; R2 = Q; R3 = H) and I (R2 = Q1) were synthesized, wherein both terminal and non-terminal N-acetyl-β-D-glucosamine residues were not yet galactosylated. The alkyl-bridged derivatives were found to be good acceptor substrates for bovine milk β-1,4-galactosyltransferase. Reaction of the anomeric allyl functions with cysteamine under UV-irradiation gave the corresponding 3-(2-aminoethylthio)propyl glycosides I (R1 = (CH2)3S(CH2)2NH2; R3 = Q) (II) and II (R2 = Q1; R3 = Q) suitable for further coupling of the oligosaccharide mimics to protein carriers. After reading the article, we found that the author used Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2Related Products of 99409-32-2)

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Related Products of 99409-32-2They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas.

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

Vesely, Jan; Ledvina, Miroslav; Jindrich, Jindrich; Saman, David; Trnka, Tomas published an article in Collection of Czechoslovak Chemical Communications. The title of the article was 《Improved synthesis of 1,2-trans-acetates and 1,2-trans ethyl 1-thioglycosides derived from 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-D-hexopyranosides》.Electric Literature of C22H25NO9S The author mentioned the following in the article:

Effective one-pot synthesis of 1,2-trans-acetates derived from N-phthaloyl-protected D-glucosamine, D-galactosamine and D-mannosamine, resp., is presented. Anomerization of the corresponding 1,2-cis-acetates and direct conversion of all of them to 1,2-trans Et 1-thioglycosides are also described and discussed. In the experiment, the researchers used many compounds, for example, Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2Electric Literature of C22H25NO9S)

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Electric Literature of C22H25NO9SThey are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

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

《New effective synthesis of (N-acetyl- and N-stearoyl-2-amino-2-deoxy-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-2-aminobutanoyl-D-isoglutamine, analogs of GMDP with immunopotentiating activity》 was written by Ledvina, Miroslav; Zyka, Daniel; Jezek, Jan; Trnka, Tomas; Saman, David. Reference of Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside And the article was included in Collection of Czechoslovak Chemical Communications on April 30 ,1998. The article conveys some information:

Et 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside (5), prepared by benzylation of Et 2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside, was transformed by reaction with bromine into 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide (6). Thioglycoside 5 in the presence of Me triflate and glycosyl bromide 6 in the presence of silver triflate were used as glycosyl donors for condensation with benzyl 2-acetamido-3-O-allyl-6-O-benzyl-2-deoxy-α-D-glucopyranoside, to give benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside (8). Its reductive dephthaloylation with NaBH4/AcOH afforded benzyl 2-acetamido-3-O-allyl-4-O-(2-amino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-6-O-benzyl-2-deoxy-α-D-glucopyranoside (11). Compound 11 was N-acylated to give benzyl 2-acetamido-4-O-(2-acylamino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-3-O-allyl-6-O-benzyl-2-deoxy-α-D-glucopyranosides. These compounds were converted into corresponding benzyl 2-acetamido-4-O-(2-acylamino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-6-O-benzyl-3-O-carboxymethyl-2-deoxy-α-D-glucopyranosides which, by condensation with H-L-Abu-D-isoGln(OBzl) followed by hydrogenolysis of protective benzyl groups, furnished the title glycopeptides. Intramol. O→N migration of the allyl protecting group followed by its reduction to the Pr residue by reaction of compound 8 with hydrazine or hydrazinium acetate, to give benzyl 2-acetamido-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-propylamino-β-D-glucopyranosyl)-6-O-benzyl-2-deoxy-α-D-glucopyranoside, is also described. The experimental part of the paper was very detailed, including the reaction process of Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2Reference of Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside)

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Reference of Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranosideThey are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

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