• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】10785

【品名】2-[[2-(acetamido)-6-chloro-9H-purin-9-yl]methoxy]ethyl acetate

【CA登记号】

【 分 子 式 】C12H14ClN5O4

【 分 子 量 】327.72716

【元素组成】C 43.98% H 4.31% Cl 10.82% N 21.37% O 19.53%

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:(II)

A new synthesis of A-515-U has been reported. The compound can be synthesized in two similar ways: 1) The reaction of 9-(2-acetoxyethoxymethyl)-2-(acetylamino)-6,9-dihydro-1H-purin-6-one (I) with POCl3 and 2,4,6-trimethylpyridine in refluxing acetonitrile gives 9-(2-acetoxyethoxymethyl)-2-(acetylamino)-6-chloro-9H-purine (II), which is dechlorinated with formic acid - triethylamine and Pd/C in refluxing acetone, yielding 9-(2-acetoxyethoxymethyl)-2-(acetylamino)-9H-purine (III). Finally, this compound is deacetylated in water. 2) Purine (I) is partially deacetylated with triethylamine in refluxing ethanol to give 9-(2-acetoxyethoxymethyl)-2-amino-6,9-dihydro-1H-purin-6-one (IV), which is treated with POCl3 as before to yield the chloropurine (V). The dechlorination of (V) with HCO2H as before or with ammonium formate - Pd/C affords 9-(2-acetoxyethoxymethyl)-2-amino-9H-purine (VI), which is finally deacetylated with methylamine as before.

1 Stimac, A.; Kobe, J.; A new synthesis of acyclovir prodrugs. N2-Acetylacyclovir and 6-deoxya cyclovir. Synthesis 1990, 6, 6, 461-4.
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) 10784 2-[[2-(acetamido)-6-oxo-1,6-dihydro-9H-purin-9-yl]methoxy]ethyl acetate; Acetic acid 2-(2-acetamido-6-oxo-1,6-dihydro-purin-9-ylmethoxy)-ethyl ester 75128-73-3 C12H15N5O5 详情 详情
(II) 10785 2-[[2-(acetamido)-6-chloro-9H-purin-9-yl]methoxy]ethyl acetate C12H14ClN5O4 详情 详情
(III) 10786 2-[[2-(acetamido)-9H-purin-9-yl]methoxy]ethyl acetate C12H15N5O4 详情 详情
(IV) 10787 2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl acetate C10H13N5O4 详情 详情
(V) 10788 2-[(2-amino-6-chloro-9H-purin-9-yl)methoxy]ethyl acetate C10H12ClN5O3 详情 详情
(VI) 10789 2-[(2-amino-9H-purin-9-yl)methoxy]ethyl acetate C10H13N5O3 详情 详情
Extended Information