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【结 构 式】 
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【分子编号】28429 【品名】(3R,4S,5S,6R,7S,9R,11R,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-4,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 【CA登记号】 |
【 分 子 式 】C32H57NO10 【 分 子 量 】615.80532 【元素组成】C 62.41% H 9.33% N 2.27% O 25.98% |
合成路线1
该中间体在本合成路线中的序号：(V)Alkylation of silylated erythromycin oxime (I) with allyl bromide in the presence of t-BuOK provided allyl ether (II). After acid hydrolysis of the cyclo hexylidene ketal of (II), the oxime group was removed by treatment with NaHSO3 and formic acid to afford ketone (IV). Subsequent cleavage of the 3-O-cladinose unit of (IV) by hydrolysis with HCl furnished ketolide (V). The 2'-hydroxyl group of (V) was then protected by benzoylation with benzoic anhydride yielding (VI).
| 【1】 Flamm, R.K.; Raney, P.M.; Nilius, A.M.; Bui, M.; Or, Y.S.; Wang, S.; Plattner, J.J.; Ma, Z.; Clark, R.; Chu, D.T.W.; Synthesis and antibacterial activity of 6-O-substituted ketolides. 38th Intersci Conf Antimicrob Agents Chemother (Sept 24 1998, San Diego) 1998, Abst F-126. |
| 【2】 Or, Y.S.; Ma, Z.; Clark, R.F.; Chu, D.T.; Plattner, J.J. (Abbott Laboratories Inc.); 6-O-Substd. ketolides having antibacterial activity. EP 0929563; US 5866549; WO 9809978 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 28388 | (3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-6-([(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-14-ethyl-7,12,13-trihydroxy-4-([(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-[O-(1-isopropoxycyclohexyl)oxime] | C54H104N2O12Si2 | 详情 | 详情 | |
| (II) | 28389 | (3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-7-(allyloxy)-6-([(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-14-ethyl-12,13-dihydroxy-4-([(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-[O-(1-isopropoxycyclohexyl)oxime] | C57H108N2O12Si2 | 详情 | 详情 | |
| (III) | 28390 | (3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-oxime | C40H72N2O13 | 详情 | 详情 | |
| (IV) | 28391 | (3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione | C40H71NO13 | 详情 | 详情 | |
| (V) | 28429 | (3R,4S,5S,6R,7S,9R,11R,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-4,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione | C32H57NO10 | 详情 | 详情 | |
| (VI) | 28430 | (2S,3R,4S,6R)-2-[[(3R,4S,5S,6R,7S,9R,11R,12R,13S,14R)-7-(allyloxy)-14-ethyl-4,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecanyl]oxy]-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-3-yl benzoate | C39H61NO11 | 详情 | 详情 |