ethyl 2-(4-nitrophenyl)-4,5-dihydrothiazole-4-carboxylate

3-溴丙酮酸乙酯

4-硝基硫代苯甲酰胺

ethyl 2-(4-nitrophenyl)thiazoline-4-carboxylate

(4R) ethyl 2-(4-nitrophenyl)thiazolidine-4-carboxylate