Synthesis of 3-C-carbamoyl-3-C-cyano-3-deoxyhexopyranosides by cyclization of dialdehydes with cyanoacetamide
作者:Francisco Santoyo Gonza´lez、Fernando Herna´ndez Mateo、Fidel J. Lo´pez Aparicio、Hans H. Baer
DOI:10.1016/0008-6215(90)80007-p
日期:1990.10
The dialdehydes 1 and 11 obtained by periodate oxidation of methyl α- and β- d -glucopyranoside underwent cyclization with cyanoacetamide to give 3-deoxyhexopyranosides bearing a carbamoyl and a cyano group at C-3. Three products formed from 1 and were isolated as 4, 6-benzylidene acetals and found to have the α- d - gluco , α- d - manno , and β- l - gluco configurations. From 11 was obtained a normal