5-[Bis(2-ethoxy-2-oxoethyl)amino]-4-cyano-2-(ethoxycarbonyl)-3-thiopheneacetic acid ethyl ester | Diethyl 2,2'-(3-cyano-4-(2-ethoxy-2-oxoethyl)-5-(ethoxycarbonyl)thiophen-2-ylazanediyl)diacetate |
Diethyl 2,2'-((3-cyano-4-(2-ethoxy-2-oxoethyl)-5-(ethoxycarbonyl)thiophen-2-yl)azanediyl)diacetat | 2-[N,N-di(ethoxycarbonylmethyl)amino]-3-cyano-4-ethoxycarbonylmethylthiophene-5-carboxylic acid ethyl ester |