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7-氨基-3-甲氧甲基-3-头孢烯-4-羧酸(1)是合成第三代口服头孢菌素头孢泊肟醇的关健母体。3位甲
7-Amino-3-methoxymethyl-3-cephem-4-carboxylic acid (1) is a key precursor for the synthesis of the third generation oral cephalothin cefpodoxime alcohol. 3 A