Isocyanoalkyl carboxylic acid derivatives, their conversion to secondary amide alkyl carboxylic acid derivatives by isocyanide multi-component reaction, and secondary amide alkyl carboxylic acid derivatives

摘要

The present invention relates to compounds of the general formula I wherein A is a group of the formula and Z is an O or S atom, to the further processing thereof to form novel sec-amidoalkylcarbonic acid derivatives and to those sec-amidoalkylcarbonic acid derivatives.