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【结 构 式】 
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【分子编号】62587 【品名】methyl 2-(benzyloxy)-5-((1R)-2-{benzyl[6-(4-phenylbutoxy)hexyl]amino}-1-hydroxyethyl)benzoate 【CA登记号】 |
【 分 子 式 】C40H49NO5 【 分 子 量 】623.8328 【元素组成】C 77.01% H 7.92% N 2.25% O 12.82% |
合成路线1
该中间体在本合成路线中的序号：(X)The reaction of 6-(4-phenylbutoxy)hexyl bromide (VI) with NaN3 in DMF gives The azido derivative (VII), which is reduced with LiAlH4 to yield the primary amine (VIII). The reductive alkylation of (VIII) by means of benzaldehyde and NaBH4 affords the benzylamine (IX), which is condensed with the chiral epoxide (V) in refluxing THF to provide the chiral hydroxyamine (X). The reduction of the ester group of (X) with LiAlH4 leads to the hydroxymethyl compound (XI), which is finally fully debenzylated by means of H2 over Pd/C to give rise to the target (R)-salmeterol.
| 【1】 Hett, R.; et al.; Enantioselective synthesis of salmeterol via asymmetric borane reduction. Tetrahedron Lett 1994, 35, 50, 9375. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (V) | 62585 | methyl 2-(benzyloxy)-5-[(2R)oxiranyl]benzoate | C17H16O4 | 详情 | 详情 | |
| (VI) | 31479 | 1-[4-[(6-bromohexyl)oxy]butyl]benzene; 6-bromohexyl-4-phenylbutyl ether; 6-Bromohexyloxybutylbenzene | 94749-73-2 | C16H25BrO | 详情 | 详情 |
| (VII) | 62586 | 1-{4-[(6-azidohexyl)oxy]butyl}benzene; 6-azidohexyl 4-phenylbutyl ether | C16H25N3O | 详情 | 详情 | |
| (VIII) | 62577 | 6-(4-phenylbutoxy)-1-hexanamine; 6-(4-phenylbutoxy)hexylamine | C16H27NO | 详情 | 详情 | |
| (IX) | 35837 | N-benzyl-6-(4-phenylbutoxy)-1-hexanamine; N-benzyl-N-[6-(4-phenylbutoxy)hexyl]amine | C23H33NO | 详情 | 详情 | |
| (X) | 62587 | methyl 2-(benzyloxy)-5-((1R)-2-{benzyl[6-(4-phenylbutoxy)hexyl]amino}-1-hydroxyethyl)benzoate | C40H49NO5 | 详情 | 详情 | |
| (XI) | 62588 | (1R)-1-[4-(benzyloxy)-3-(hydroxymethyl)phenyl]-2-{benzyl[6-(4-phenylbutoxy)hexyl]amino}-1-ethanol | C39H49NO4 | 详情 | 详情 |