A vinyl bis-sulfone Michael type approach towards heteroatom vinylation was applied on nitrogen derivatives. Cyclic thionocarbamates-mainly 1,3-oxazolidine-2-thiones-were converted into their N-vinyl counterparts; the procedure proved particularly efficient in the case of carbohydrate-derived complex structures. (C) 2004 Published by Elsevier Ltd.
Small libraries of fused quinazolinone-sugars. Access to quinazolinedione nucleosides
Unprotected carbohydrates can readily be converted into base-modified nucleosides and deoxynucleosides through a short sequence involving the condensation of anthranilic acid derivatives with a suitably protected sugar-derived 2-alkylthio-1,3-oxazoline. (C) 2004 Elsevier Ltd. All rights reserved.
BUCHANAN, J. GRANT;MCCAIG, AVRIL E.;WIGHTMAN, RICHARD H., J. CHEM. SOC. PT 1. PERKIN TRANS.,(1990) N, C. 955-963
作者:BUCHANAN, J. GRANT、MCCAIG, AVRIL E.、WIGHTMAN, RICHARD H.