Furan, benzofuran and tetrahydrofuran carboxylic acid esters
申请人:Hoffmann-La Roche Inc.
公开号:US03956323A1
公开(公告)日:1976-05-11
Compounds represented by the following formula ##EQU1## wherein A is a substituted or unsubstituted heterocyclic radical and T is a C.sub.2 -C.sub.5 alkyl, alkenyl, cyclopropylmethyl, cyclobutylmethyl or cyclopentyl group A process for their preparation and novel intermediates therefor are disclosed. These compounds are useful antibiotics.