2-乙酰氧基丙酸丁酯

butyl 2-amino-4-oxo-5,6,7,8-tetrahydro-1H-quinazoline-6-carboxylate

N-苄基邻甲苯胺

6-氯-N4-环戊基嘧啶-4,5-二胺

dibutyl 2-[(4-methylphenyl)sulfonylamino]butanedioate