SETT ATT FRAMSTELLA PYRIDINKARBOXYLSYRAPIPERAZIDER

摘要

Piperazides, having the general formula I and their acid addition salts, wherein R<1> is a methyl or a benzyl group are prepared by reacting a compound of the general formula IV wherein R is alkyl of 1 to 3 carbon atoms with a substituted piperazine of the general formula V The compound of general formula IV may be made by reaction of a salt of pyridinecarboxylic acid with an alkyl chloroformate and can be used without isolation.