发明授权
US3159552A Process of producing 4-dedimethylamino-4-methylethylamino-5-hydroxytetracycline 失效
4-脱二甲基氨基-4-甲基乙基氨基-5-羟基四环素的制备方法

Process of producing 4-dedimethylamino-4-methylethylamino-5-hydroxytetracycline
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