2-(2-苯并噻唑甲氧基)乙酸

马来酸酐

乙烯酮

2-[2-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethylamino]-2-oxoethoxy]acetic acid

2-[2-(dipropylamino)-2-oxoethoxy]acetic acid