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COMPOUND 6-O-METHYLERYTROMYCIN A 9-HYDRAZONE, PROCESS FOR PREPARING THE 6-O-METHYLERYTROMYCIN A 9-HYDRAZONE AND PROCESS FOR PREPARING 6-O-METHYLERYTROMYCIN A 9-OXIME
COMPOUND 6-O-METHYLERYTROMYCIN A 9-HYDRAZONE, PROCESS FOR PREPARING THE 6-O-METHYLERYTROMYCIN A 9-HYDRAZONE AND PROCESS FOR PREPARING 6-O-METHYLERYTROMYCIN A 9-OXIME
The invention provides novel erythromycin A derivatives of the general formula I: CHEM wherein R1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R2 is an alkyl group having 1 to 6 carbon atoms or an unsubstituted or substituted aryl group; or R1 and R2 together form a linear or branched chain alkylene ring having 3 to 10 carbon atoms, an arylenealkylene group in which the alkylene moiety has 2 to 3 carbon atoms, or an arylenedialkylene group in which the alkylene moities have 1 to 2 carbon atoms; R3 is a substituted silyl group; and R4 is a hydrogen atom or substituted silyl group.
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机译:本发明提供了通式I:的新型红霉素A衍生物,其中R 1是氢原子或具有1-6个碳原子的烷基; R 2为碳数1〜6的烷基或未取代或取代的芳基。或R 1和R 2一起形成具有3至10个碳原子的直链或支链亚烷基环,其中亚烷基部分具有2至3个碳原子的亚芳基亚烷基,或其中亚烷基部分具有1至2个碳原子的亚芳基二亚烷基。 ; R3是取代的甲硅烷基; R 4为氢原子或取代的甲硅烷基。
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