439914-99-5Relevant academic research and scientific papers
Synthesis of furanoid and pyranoid C-1 aryl glycals by reaction of glycosyl chlorides with organolithium reagents
Goemez, Ana M.,Casillas, Marta,Rodriguez, Benjamin,Valverde, Serafin,Loepez, J. Cristoebal
experimental part, p. 288 - 302 (2010/08/07)
Furanosyl and pyranosyl chlorides react with aryllithium derivatives, obtained by directed ortho-lithiation of activated arenes, to give C-1 aryl glycals in moderate yields.
Synthesis of orthogonally protected d-olivoside, 1,3-di-O-acetyl-4-O-benzyl-2,6-dideoxy-d-arabinopyranose, as a C-glycosyl donor
Osman, Hasnah,Larsen, David S.,Simpson, Jim
experimental part, p. 4092 - 4098 (2009/09/30)
1,3-Di-O-acetyl-4-O-benzyl-2,6-dideoxy-d-arabinopyranose (11) was synthesised from thiophenyl α-d-mannopyranoside (21) in an eight-step sequence. Tosylation of 21 and subsequent reaction with 2,2-dimethoxypropane gave tosylate 22, which upon treatment with lithium aluminium hydride furnished 6-deoxy glycoside 24 and by-product thiophenyl 6-deoxy-2-O-isopropyl-α-d-arabinopyranoside. The X-ray crystal structure of the latter was determined. Benzylation of the 4-hydroxyl group of 24 and subsequent protecting group manipulation gave d-rhamnosyl bromide 29, which on treatment with zinc-copper couple gave the orthogonally protected d-rhamnal 30. Triphenylphosphine hydrogen bromide catalysed addition of acetic acid to 30 furnished the target molecule 11. The scandium(III) triflate promoted reaction of 11 and 2-naphthol gave the corresponding C-glycoside 36 in 86% yield. Crown Copyright
Synthesis of (-)-sordarin
Chiba, Shunsuke,Kitamura, Mitsuru,Narasaka, Koichi
, p. 6931 - 6937 (2007/10/03)
The first total synthesis of (-)-sordarin (1) was accomplished exploiting the following key reactions: (i) Ag(I)-catalyzed oxidative radical cyclization of a cyclopropanol derivative leading to a bicyclo-[5.3.0]decan-3-one skeleton; (ii) Pd(0)-catalyzed i
Synthesis of p-trifluoroacetamidophenyl 6-deoxy-2-O--α-L-rhamnopyranosyl>-α-L-talopyranoside: a spacer armed tetrasaccharide glycopeptidolipid antigen of Mycobacterium avium serovar 2
Kerekgyarto, Janos,Szurmai, Zoltan,Liptak, Andras
, p. 65 - 80 (2007/10/02)
The synthesis of the title tetrasaccharide glycoside 38 is reported. p-Nitrophenyl endo-3,4-O-benzylidene-6-deoxy-α-L-talopyranoside (4), 3-O-acetyl-2,4-di-O-benzyl-α-L-rhamnopyranosyl trichloroacetimidate (7), methyl 3-O-acetyl-4-O-benzyl-2-O-methyl-1-th
