1-苄基-2-甲基-2-咪唑啉

2,5-dimethyl-4,5-dihydro-1,3-oxazole

(2S)-4-甲基-3,5-噁唑啉羧酸乙酯

methyl 2,5,5-trimethyl-4H-1,3-thiazole-4-carboxylate

2-methyl-7-phenylmethoxy-1H-quinazolin-4-one