| 4-(p-chlorophenyl)-2-(2,5-dioxo-3-pyrrolin-1-yl)-thiazole-5-acetic aci meth |
| 2-maleicimido-4-p-chlorophenylthiazole-5-acetic acid methyl ester |
| 4-(p-chlorophenyl)-2-(2,5-dioxo-3-pyrrolyn-1-yl)thiazole-5-aceticacid methyl |
| methyl ester of 2-maleicimido-4-chlorophenylthiazole-5-acetic acid |
| 4-(p-chlorophenyl)-2-(2,5-dioxo-3-pyrrolin-1-yl)-thiazole-5-acetic aci methyl ester |
