ethyl N-ethoxycarbonylbenzenecarbohydrazonate

Ethyl 2-phenyl-4,5-dihydro-1,3-thiazole-4-carboxylate

2MV1

2-methyl-4-phenyl-1,3-oxazin-6-one

3-苯基-1,2,4-三唑并[4,3-a]吡啶