Ethyl 3-(3-fluorophenyl)-5-methyl-1,2-oxazole-4-carboxylate

3-(4-氯苯基)-5-甲基-4-异噁唑羧酸乙酯

7-methyl-3,8-dihydro-2H-imidazo[1,2-a]pyrimidin-5-one

ethyl 3-oxohex-4-ynoate

diethyl 2,4-dihydroxy-6-methylbenzene-1,3-dicarboxylate