【结 构 式】 |
【分子编号】62576 【品名】6-[(2R)oxiranyl]-4H-1,3-benzodioxine 【CA登记号】 |
【 分 子 式 】C10H10O3 【 分 子 量 】178.1876 【元素组成】C 67.41% H 5.66% O 26.94% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号:(III)The enantioselective reduction of the phenacyl bromide (I) by means of a culture of Rhodotolule rubra in water gives the a(R)-hydroxy enantiomer (II), which is treated with K2CO3 in refluxing ethanol to yield the chiral epoxide (III). The condensation of (III) with 6-(4-phenylbutoxy)hexylamine (IV) by means of N,O-bis(trimethylsilyl)acetamide (TMSA) in hot DMSO affords the precursor (V), which is finally deprotected by means of HCl in water to provide the target (R)-salmeterol.
【1】 Goswami, J.; et al.; A conventient stereoselective synthesis of (R)-(-)-denopamine and (R)-(-)-salmeterol. Tetrahedron Asymmetry 2001, 12, 24, 3343. |
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) | 62574 | 1-(4H-1,3-benzodioxin-6-yl)-2-bromo-1-ethanone | C10H9BrO3 | 详情 | 详情 | |
(II) | 62575 | (1R)-1-(4H-1,3-benzodioxin-6-yl)-2-bromo-1-ethanol | C10H11BrO3 | 详情 | 详情 | |
(III) | 62576 | 6-[(2R)oxiranyl]-4H-1,3-benzodioxine | C10H10O3 | 详情 | 详情 | |
(IV) | 62577 | 6-(4-phenylbutoxy)-1-hexanamine; 6-(4-phenylbutoxy)hexylamine | C16H27NO | 详情 | 详情 | |
(V) | 62578 | (1R)-1-(4H-1,3-benzodioxin-6-yl)-2-{[6-(4-phenylbutoxy)hexyl]amino}-1-ethanol | C26H37NO4 | 详情 | 详情 |
Extended Information