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【结 构 式】 
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【分子编号】60662 【品名】(2S)-2-cyclohexyl-2-phenyl-2-[(trimethylsilyl)oxy]ethanal 【CA登记号】 |
【 分 子 式 】C17H26O2Si 【 分 子 量 】290.47774 【元素组成】C 70.29% H 9.02% O 11.02% Si 9.67% |
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：(IV)The catalytic enantioselective cyanosilylation of the ketone (I) by means of Tms-CN catalyzed by gadolinium isopropoxide and the chiral ligand (II) in THF/propionitrile gives the silylated cyanohydrin (III), which is reduced by means of DIBAL in toluene to yield the carbaldehyde (IV). The desilylation of (IV) by means of HCl in aqueous THF affords the hydroxyaldehyde (V), which is finally oxidized by means of NaClO2 in tert-butanol/water to provide the target (S)-2-cyclohexyl-2-hydroxy-2-phenylacetic acid intermediate (VI) (see Scheme no. 23604001a, intermediate (IV)).
| 【1】 Masumoto, S.; et al.; A practical synthesis of (S)-oxybutynin. Tetrahedron Lett 2002, 43, 48, 8647. |
| 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) | 60659 | cyclohexyl(phenyl)methanone | C13H16O | 详情 | 详情 | |
| (II) | 60660 | (2S,3R,4R)-2-[(diphenylphosphoryl)methyl]-4-(2-hydroxyphenoxy)tetrahydro-2H-pyran-3-ol | C24H25O5P | 详情 | 详情 | |
| (III) | 60661 | (2S)-2-cyclohexyl-2-phenyl-2-[(trimethylsilyl)oxy]ethanenitrile | C17H25NOSi | 详情 | 详情 | |
| (IV) | 60662 | (2S)-2-cyclohexyl-2-phenyl-2-[(trimethylsilyl)oxy]ethanal | C17H26O2Si | 详情 | 详情 | |
| (V) | 60663 | (2S)-2-cyclohexyl-2-hydroxy-2-phenylethanal | C14H18O2 | 详情 | 详情 | |
| (VI) | 51215 | (2S)-2-cyclohexyl-2-hydroxy-2-phenylethanoic acid | C14H18O3 | 详情 | 详情 |
Extended Information