发明名称 GAMMA ALKYLATION OF A PROTECTED DERIVATIVE OF THE ENONE OF SPECTINOMYCIN
摘要 Process for alkylatine protected spectinomycin enone derivatives in the gamma position in order to produce intermediates useful in the synthesis of 6'alkylspectinomycins. The intermediate have formula (III) which comprises reacting a compound having formula (V) with a strong base and an alkenyl halide, wherein R1 is selected from the group consisting of alkoxycarbonyl, halogenated alkoxycarbonyl, aralkoxycarbonyl, and arylsulfone; R2 is selected from the group consisting of hydrogen, trimethylsilyl (TMS), tetrahydropyran (THP), and triethylsilyl (TES); A is selected from the group consisting of oxygen and sulfur; M is selected from the group consisting of lithium and potassium; and n is an integer from 1 to 3.
申请公布号 WO9104256(A1) 申请公布日期 1991.04.04
申请号 WO1990US04451 申请日期 1990.08.14
申请人 THE UPJOHN COMPANY 发明人 HERRINGTON, PAUL, M.
分类号 C07D493/04;C07D497/04 主分类号 C07D493/04
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