methyl 5-(4-chlorophenyl)-2-[(4-chlorophenyl)carbamoyl]-4-methyl-3H-pyrazole-4-carboxylate

异丙基苯基砜

5-羟基甲基-3-(4-甲氧基苯基l)-2-噁唑烷酮

1-O-tert-butyl 3-O-methyl 2-oxopyrrolidine-1,3-dicarboxylate

4,4-二甲基-2-羰基甲氧基环己酮