新型氨基糖苷類抗菌藥plazomicin的合成
[Abstract]:After dissociation, sisomicin sulfate (2) was selectively protected by 4-nitrobenzoxy carbonyl (PNZ), then protected by tert-butoxycarbonyl (Boc) (2- and 3-position amino groups), fluorene methoxycarbonyl (Fmoc) (Fmoc) protected 1-position amino groups. And Boc protected 3 "-position amino to [6- (4-nitrobenzoxy carbonyl) -2tbutylmethoxycarbonyl] sisomicin (6), then removed Fmocmocloxycarbonyl -4amino-2-hydroxybutyric acid (12) and condensed with Nt-tert-butoxy carbonyl -4amino -2 (S) -hydroxybutyric acid (12) to obtain [2tbutylcarbonyl 3" -tert-butyloxycarbonyl] sisomicin (6). Carbonyl [N- tert-butyloxycarbonyl -4amino -2 (S)-hydroxybutylol] sisomicin (9) -9 was reduced and ammoniated with benzoyl acetaldehyde (13) and triacetyl sodium borohydride to obtain [6N-benzoyloxyethyl-233 "-tri-tert-butyloxycarbonyl-1- [N- tert-butyloxycarbonyl] -1- [N- tert-butyloxyacetaldehyde (13) and triacetyl sodium borohydride] by reductive ammoniation of carbonyl -1- [N- tert-butyloxyacetaldehyde (13) and triacetyl sodium borohydride] [6-HYDROXYL-HYDROXYL-2HYDROXYL 3 "-TRIMETHYDROxycarbonyl -1- [N- tert-butoxycarbonyl -4- amino -2 (S)-hydroxybutyloyl] sisomicin (11) was obtained by removing benzoyl group (10). Finally, plazomicin (1) was obtained by removing Boc protection. The overall yield was 3.8% (based on 2). Of these, 10 / 11 were not reported in the literature.
【作者單位】: 中國醫(yī)藥工業(yè)研究總院上海醫(yī)藥工業(yè)研究院創(chuàng)新藥物與制藥工藝國家重點實驗室;
【分類號】:R914.5
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