| 摘要 |
3-Substd. phenyl-4-cyano -1-alkoxycarbonylmethyl -pyrrole derivs. of formula (I) are new: R1 and R2 = 1-8C alkyl (opt. substd. by halo), halo, NO2 or H, or together are -OCF2O-; R3 = 1-8C alkyl, cycloalkyl or benzyl; R4 = H, alkali or alkaline earth metal. Pref. R1 and R2 = 1-6C alkyl (opt. halo substd.), halo, NO2 or H, or together are -OCF2O-; R3 = 1-6C alkyl or benzyl; R4 = H. |
