【结 构 式】 |
【分子编号】52966 【品名】2-amino-9-[(2R)-4-{[tert-butyl(diphenyl)silyl]oxy}-2-(hydroxymethyl)butyl]-1,9-dihydro-6H-purin-6-one 【CA登记号】 |
【 分 子 式 】C26H33N5O3Si 【 分 子 量 】491.66542 【元素组成】C 63.52% H 6.77% N 14.24% O 9.76% Si 5.71% |
合成路线1
该中间体在本合成路线中的序号:(XIV)In an alternative method, (R)-9-[4-hydroxy-2-(hydroxymethyl)]guanine (VI) was selectively silylated at the 4-hydroxyl by means of tert-butyldiphenylsilyl chloride. The resultant mono-silylated compound (XIV) was acylated with stearoyl chloride (IX), producing stearate ester (XV). Desilylation of (XV) with tetrabutylammonium fluoride, followed by coupling with either N-Boc-L-valine (VII) or N-Cbz-L-valine (XVI), furnished the respective N-protected valyl esters (X) and (XIII). The title compound was then obtained by N-deprotection of (X) and (XIII) under acidic conditions or by catalytic hydrogenation, respectively.
【1】 Engelhardt, P.; Hoberg, M.; Zhou, X.-X.; Lindborg, B.; Johansson, N.G. (Medivir AB); Acyclic nucleoside derivs.. EP 0888348; JP 2000504720; JP 2000504721; US 5869493; WO 9730051; WO 9730052 . |
【2】 Synthesis of acyclic nucleoside derivs.. WO 9834917 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VI) | 52959 | 2-amino-9-[(2R)-4-hydroxy-2-(hydroxymethyl)butyl]-1,9-dihydro-6H-purin-6-one | C10H15N5O3 | 详情 | 详情 | |
(VII) | 19733 | (2S)-2-[(tert-butoxycarbonyl)amino]-3-methylbutyric acid | C10H19NO4 | 详情 | 详情 | |
(IX) | 52961 | n-Octadecanoyl chloride; Octadecanoyl Chloride; Stearic acid chloride; Stearoyl chloride | 112-76-5 | C18H35ClO | 详情 | 详情 |
(X) | 52962 | (2R)-2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methyl]-4-({(2S)-2-[(tert-butoxycarbonyl)amino]-3-methylbutanoyl}oxy)butyl stearate | C38H66N6O7 | 详情 | 详情 | |
(XIII) | 52965 | (2R)-2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methyl]-4-[((2S)-2-{[(benzyloxy)carbonyl]amino}-3-methylbutanoyl)oxy]butyl stearate | C41H64N6O7 | 详情 | 详情 | |
(XIV) | 52966 | 2-amino-9-[(2R)-4-{[tert-butyl(diphenyl)silyl]oxy}-2-(hydroxymethyl)butyl]-1,9-dihydro-6H-purin-6-one | C26H33N5O3Si | 详情 | 详情 | |
(XV) | 52967 | (2R)-2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methyl]-4-{[tert-butyl(diphenyl)silyl]oxy}butyl stearate | C44H67N5O4Si | 详情 | 详情 | |
(XVI) | 18092 | (2S)-2-[[(benzyloxy)carbonyl]amino]-3-methylbutyric acid | C13H17NO4 | 详情 | 详情 |