甲基戊酰氯

2-氯-5-异氰酸硝基苯

5,5-二乙氧基-1,3-二苯基-2,4-咪唑烷二酮

N,N’-diphenylformamidine

2-chloro-1,3-diphenylimidazolidine-4,5-dione