2-氨基-1,6-二氢-6-氧代-4-嘧啶乙酸

dioctadecyl 3-oxopentanedioate

diethyl 3-hydroxyiminopentanedioate

diethyl 3-(4-propan-2-yloxyanilino)pent-2-enedioate

diethyl 5-cyclohexyl-2-hydroxybenzene-1,3-dicarboxylate