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【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%

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:(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
Extended Information