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118977-26-7

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  • Factory Price 99% 5-Acetamido-4,7,8,9-tetra-O-acetyl-2-S-phenyl-2-thio-α-neuraminic Acid Methyl Ester CAS 118977-26-7 Manufacturer

    Cas No: 118977-26-7

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  • Methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thiophenyl-D-glycero-a-D-galacto-2-nonulopyranosylonate

    Cas No: 118977-26-7

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118977-26-7 Usage

Uses

N-Acetyl-?2-?S-?phenyl-?2-?thio-4,?7,?8,?9-?tetraacetate-α-?neuraminic Acid Methyl Ester is a useful reagent for stereoselective synthesis of 2-thioglycosides of N-acetylneuraminic acid.

Check Digit Verification of cas no

The CAS Registry Mumber 118977-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,9,7 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 118977-26:
(8*1)+(7*1)+(6*8)+(5*9)+(4*7)+(3*7)+(2*2)+(1*6)=167
167 % 10 = 7
So 118977-26-7 is a valid CAS Registry Number.

118977-26-7Relevant articles and documents

Concise Synthesis of 1-Thioalkyl Glycoside Donors by Reaction of Per-O-acetylated Sugars with Sodium Alkanethiolates under Solvent-Free Conditions

Dong, Hai,Feng, Guang-Jing,Guo, Yang-Fan,Liu, Chun-Yang,Luo, Tao

, (2022/02/07)

A relatively green method for synthesizing 1-thioalkyl glycosides has been developed, where sodium alkanethiolates were used to react with per-O-acetylated sugars instead of odorous alkyl mercaptans in the presence of BF3·Et2O without the use of solvents under mild conditions. Furthermore, we found that 1,2-trans-β-thioglycosides can be converted into corresponding 1,2-cis-α-thioglycosides in the presence of trifluoromethanesulfonic acid in nonpolar solvents under mild conditions. This provides a simple and efficient new approach for synthesizing challenging 1,2-cis-α-thioglycosides.

Triflic acid-mediated synthesis of thioglycosides

Escopy, Samira,Singh, Yashapal,Demchenko, Alexei V.

supporting information, p. 8379 - 8383 (2019/09/30)

An efficient synthesis of thioglycosides from per-acetates in the presence of triflic acid is described. The developed protocol features high reaction rates and product yields. Some reactive sugar series give high efficiency in the presence of sub-stoichiometric trifluoromethanesulfonic acid (TfOH) in contrast to other known protocols that require multiple equivalents of Lewis acids to reach high conversion rates.

The total synthesis of a ganglioside Hp-s1 analogue possessing neuritogenic activity by chemoselective activation glycosylation

Tsai, Yow-Fu,Shih, Cheng-Hua,Su, Yu-Ting,Yao, Chun-Hsu,Lian, Jang-Feng,Liao, Chun-Chen,Hsia, Ching-Wu,Shui, Hao-Ai,Rani, Rashmi

supporting information; experimental part, p. 931 - 934 (2012/04/04)

The total synthesis of ganglioside 2, an analogue of the ganglioside Hp-s1 (1) which displays neuritogenic activity toward the rat pheochromocytoma cell line PC-12 cell in the presence of nerve growth factor (NGF) with an effect (34.0%) greater than that

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