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【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