ethyl 2-[2-[4-(methoxymethyl)phenyl]-1,3-thiazol-4-yl]acetate

ethyl 4-(N-methylanilino)-3-oxobutanoate

4-(苄氧基)-3-氧代丁酸乙酯

4-(bromomethyl)benzo[h]chromen-2-one

ethyl 2-cyano-2-[4-(2-ethoxy-2-oxoethyl)-4-hydroxy-1,3-dithiolan-2-ylidene]acetate