| 摘要 |
Process for alkylating protected spectinomycin enone derivatives in the gamma position in order to produce intermediates useful in the synthesis of 6'alkylspectinomycins. The intermediate have the formula <IMAGE> III which comprises reacting a compound having the formula <IMAGE> 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.
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