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本专利发现四环素或土霉素(Ⅰ)在有机金属化合物(Ⅱ)或(Ⅲ)存在下进行氢化,一步制得具有立体专属性的α—6—脱氧四环素衍生物,无β—异构体产生。
This patent finds that tetracycline or oxytetracycline (I) is hydrogenated in the presence of the organometallic compound (II) or (III) in one step to give stereospecific α-6-deoxytetracycline derivative without β-isomer produce.