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【结 构 式】

【分子编号】37950

【品名】tert-butyl(dimethyl)silyl [4-(tributylstannyl)-1,3-thiazol-2-yl]methyl ether; 2-([[tert-butyl(dimethyl)silyl]oxy]methyl)-4-(tributylstannyl)-1,3-thiazole

【CA登记号】

【 分 子 式 】C22H45NOSSiSn

【 分 子 量 】518.46694

【元素组成】C 50.97% H 8.75% N 2.7% O 3.09% S 6.18% Si 5.42% Sn 22.9%

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:(V)

Lithiation of 2,4-dibromothiazole (I) with n-BuLi at -78 C, followed by condensation with dimethylformamide gave aldehyde (II), which was reduced to alcohol (III) with NaBH4. After protection of the alcohol (III) as the tert-butyldimethylsilyl ether (IV), a second metalation with n-BuLi, and subsequent quenching with tri-n-butyltin chloride furnished stannane (V). Further desilylation of (V) by means of tetrabutylammonium fluoride yielded 2-(hydroxymethyl)-4-(tri-n-butylstannyl)thiazole (VI).

1 Nicolaou, K.C.; et al.; Total synthesis of epothilone E and analogs with modified side chains through the Stille coupling reaction. Angew Chem. Int Ed Engl 1998, 37, 1-2, 84.
2 Nicolaou, K.C.; et al.; Total synthesis of epothilone E and related side-chain modified analogues via a stille coupling based strategy. Bioorg Med Chem 1999, 7, 5, 665.
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) 37946 2,4-dibromo-1,3-thiazole C3HBr2NS 详情 详情
(II) 37947 4-bromo-1,3-thiazole-2-carbaldehyde C4H2BrNOS 详情 详情
(III) 37948 (4-bromo-1,3-thiazol-2-yl)methanol C4H4BrNOS 详情 详情
(IV) 37949 (4-bromo-1,3-thiazol-2-yl)methyl tert-butyl(dimethyl)silyl ether; 4-bromo-2-([[tert-butyl(dimethyl)silyl]oxy]methyl)-1,3-thiazole C10H18BrNOSSi 详情 详情
(V) 37950 tert-butyl(dimethyl)silyl [4-(tributylstannyl)-1,3-thiazol-2-yl]methyl ether; 2-([[tert-butyl(dimethyl)silyl]oxy]methyl)-4-(tributylstannyl)-1,3-thiazole C22H45NOSSiSn 详情 详情
(VI) 37951 [4-(tributylstannyl)-1,3-thiazol-2-yl]methanol C16H31NOSSn 详情 详情
Extended Information