【结 构 式】 |
【分子编号】42089 【品名】(3R,4R,5R)-2-(acetoxy)-4-(benzoyloxy)-5-[1-(benzoyloxy)-2-propynyl]tetrahydro-3-furanyl benzoate 【CA登记号】 |
【 分 子 式 】C30H24O9 【 分 子 量 】528.51516 【元素组成】C 68.18% H 4.58% O 27.25% |
合成路线1
该中间体在本合成路线中的序号:(VIII)The reaction of the protected carbohydrate (I) with trimethylsilylacetylene (II) gives adduct (III) with no stereoselectivity at the reaction point. The oxidation of the OH group of (III) with DMP gives the corresponding oxo compound (IV), which is stereoselectively reduced with N-Selectride to yield the (R)-diastereomer (V) in a 33:1 ratio. The desilylation of (V) with TBAF in THF affords the free compound (VI), which is benzoylated with Bz2O, TEA and DMAP in acetonitrile to provide the tribenzoate (VII). The reaction of (VII) with Ac2O, H2SO4 and AcOH gives the 1-acetoxy compound (VIII), which is condensed with N6-benzoyladenine (IX) by means of Tms-OTf and TEA in acetonitrile, yielding the adenosine derivative (X). Finally, this compound is debenzoylated with ammonia in methanol.
【1】 Umino, T.; et al.; Nucleosides and nucleotides. Part 201: Alternative method to synthesize 9-(6,7-dideoxy-beta-D-allo-hept-5-ynofuranosyl)adenine, a selective and potent ligand for P-3 purinoceptor-like protein: A stereoselective reduction based on sugar puckering of the fu. Tetrahedron Lett 2000, 41, 33, 6419. |
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) | 42083 | (2S,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-methoxytetrahydro-2-furancarbaldehyde | C18H38O5Si2 | 详情 | 详情 | |
(II) | 23897 | ethynyl(trimethyl)silane;trimethylsilyl acetylene | 1066-54-2 | C5H10Si | 详情 | 详情 |
(III) | 42084 | (1R)-1-((2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-methoxytetrahydro-2-furanyl)-3-(trimethylsilyl)-2-propyn-1-ol | C23H48O5Si3 | 详情 | 详情 | |
(IV) | 42085 | 1-((2S,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-methoxytetrahydro-2-furanyl)-3-(trimethylsilyl)-2-propyn-1-one | C23H46O5Si3 | 详情 | 详情 | |
(V) | 42086 | 1-((2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-methoxytetrahydro-2-furanyl)-3-(trimethylsilyl)-2-propyn-1-ol | C23H48O5Si3 | 详情 | 详情 | |
(VI) | 42087 | (2R,3S,4R,5R)-2-(1-hydroxy-2-propynyl)-5-methoxytetrahydro-3,4-furandiol | C8H12O5 | 详情 | 详情 | |
(VII) | 42088 | (2R,3R,4R,5R)-4-(benzoyloxy)-2-[1-(benzoyloxy)-2-propynyl]-5-methoxytetrahydro-3-furanyl benzoate | C29H24O8 | 详情 | 详情 | |
(VIII) | 42089 | (3R,4R,5R)-2-(acetoxy)-4-(benzoyloxy)-5-[1-(benzoyloxy)-2-propynyl]tetrahydro-3-furanyl benzoate | C30H24O9 | 详情 | 详情 | |
(IX) | 10035 | N-(9H-Purin-6-yl)benzamide; N6-Benzoyladenine | 4005-49-6 | C12H9N5O | 详情 | 详情 |
(X) | 42090 | 1-[(2R,3R,4R,5R)-5-[6-(benzoylamino)-9H-purin-9-yl]-3,4-bis(benzoyloxy)tetrahydro-2-furanyl]-2-propynyl benzoate | C40H29N5O8 | 详情 | 详情 |