Practical synthesis of a differentially protected myo-inositol
摘要:
An enantiospecific synthesis of 3,4,5-tri-O-benzyl-6-O-triisopropylsilyl-D-myo-inositol from D-xylose is reported. The synthesis features a diastereofacially selective SmI2-promoted pinacol cyclization. (C) 1998 Elsevier Science Ltd. All rights reserved.
作者:Christine H. Jaworek、Sarah Iacobucci、Pericles Calias、Marc d'Alarcao
DOI:10.1016/s0008-6215(01)00047-7
日期:2001.4
assembled by PhSeOTf-promoted glycosylation of the known glucosamine precursor, t-butyldimethylsilyl 2-azido-3,6-di-O-benzyl-2-deoxy-beta-D-glucopyranoside (8) with protected 1-methylthio mono-, di-, and trimannosides 7a-c, and, after conversion into glycosyl fluorides, Cp2ZrCl2- AgOTf-promoted glycosylation of differentially protected optically pure 1D-myo-inositol 11. The syntheses were completed by installing
Synthesis of an inositol-containing trisaccharide related to insulin signal transduction
作者:Christine H. Jaworek、Pericles Calias、Sarah Iacobucci、Marc d'Alarcao
DOI:10.1016/s0040-4039(98)02530-1
日期:1999.1
A synthesis of D-mannosyl-(α1–4)-D-glucosaminyl-(α1–6)-D-myo-inositol-1:2-cyclic phosphate (1) from D-xylose, D-mannose, and D-glucal is reported. Compound 1 constitutes the terminal structure of the PI-PLC-released VSG membrane anchor of Trypanosomes and is structurally related to the inositol phoshate glycan implicated as an insulin second messenger in higher organisms.