process for the preparation of a preparation with anti-bacterial effect and method for the preparation of inclusion in such a preparation suitable compounds.

摘要

1508064 N-Piperazinocarbonyl-amino acid derivatives TOYAMA CHEMICAL CO Ltd 28 April 1975 [13 Aug 1974 28 Oct 1974 17 Feb 1975] 15360/77 Divided out of 1508062 Heading C2C Novel compounds I and salts and carboxyl derivatives thereof (R is an amino acid residue; RSP2/SP and RSP3/SP are H or alkyl and RSP2/SP and RSP3/SP are both linked to the same carbon atom; and A is H or an optionally substituted alkyl, alkenyl, aryl or aralkyl group) are prepared by reaction of a compound II NH 2 RCOORSP1/SP (III) (RSP1/SP is H or a cation) with a reactive derivative of a compound IV