Process for producing glucopyranose-nitrosourea compounds and novel compounds included therein

Abstract From the Canadian patent

Glucopyranose-nitrosourea compounds having a lower alkyl group and/or a 2-chloroethyl group as substituent(s) are produced at high, yield by reacting either (1) an amino-glucopyranose compound having the following general formula: IV, in which R4 represents a hydroxy group an alkoxy group having, frcm 1 to 4 carbon atoms or an amino group; and R5 and R6 which may be, the same or different, each represents a hydroxy group or an amino group; with the proviso that R4, R5 and R6 are not the same or (2) where, R4, R5 and/or R6 hereinabove represents an amino group an acid addition, salt of said compound of formula IV; with a substituted-phenyl N-subsituted-N-nitrosocarbamate compound having a …