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【结 构 式】

【分子编号】27923

【品名】N-[1-[(6aR,8R,9aR)-2,2,4,4-tetraisopropyl-9-oxotetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide

【CA登记号】

【 分 子 式 】C37H67N3O7Si2

【 分 子 量 】722.126

【元素组成】C 61.54% H 9.35% N 5.82% O 15.51% Si 7.78%

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:(XI)

4) The acylation of cytidine (VII) with hexadecanoyl anhydride (III) in hot DMF gives N-4-hexadecanoylcytidine (VIII), which is protected with 1,3-dichloro-1,1,3,3-tetraisopropyldisiloxane in pyridine, yielding the 3',5'-cyclic disiloxane (IX). The oxidation of (IX) with pyridinium dichromate in dichloromethane affords the ketonic derivative (X), which is treated with NaCN in ethyl acetate/phosphate buffer to give 2'-C-cyano-N4-hexadecanoyl-3',5'-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)cytidine (XI). The reaction of (XI) with phenoxythiocarbonyl chloride and DMAP in triethylamine provides the thiocarbonate (XII), which is reduced with AIBN and tributyltin in refluxing toluene to give the 2'-deoxy compound (VI). Finally, this compound is desilylated with TBAF in acetic acid.

1 Castaner, J.; Hoshi, A.; CS-682. Drugs Fut 1999, 24, 9, 957.
2 Kaneko, M.; Hotoda, H.; Shibata, T.; Kobayashi, T.; Mitsuhashi, Y.; Matsuda, A.; Sasaki, T. (Sankyo Co., Ltd.); Pyrimidine nucleoside derivs. having anti-tumor activity, their preparation and use. EP 0536936; JP 1993194497; US 5691319 .
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) 27919 N-[1-[(6aR,8R,9S,9aS)-9-cyano-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide C38H68N4O6Si2 详情 详情
(VII) 27920 Cytidine; 4-amino-1-((2S,3S,4S,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one;4-amino-1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-2(1H)-pyrimidinone 65-46-3 C9H13N3O5 详情 详情
(VIII) 27916 hexadecanoic anhydride 623-65-4 C32H62O3 详情 详情
(IX) 27921 N-[1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide C25H43N3O6 详情 详情
(X) 27922 N-[1-[(6aR,8R,9R,9aS)-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide C37H69N3O7Si2 详情 详情
(XI) 27923 N-[1-[(6aR,8R,9aR)-2,2,4,4-tetraisopropyl-9-oxotetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide C37H67N3O7Si2 详情 详情
(XII) 27924 N-[1-[(6aR,8R,9R,9aR)-9-cyano-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxo-1,2-dihydro-4-pyrimidinyl]hexadecanamide C38H68N4O7Si2 详情 详情
(XIII) 27925 O-[(6aR,8R,9R,9aR)-9-cyano-2,2,4,4-tetraisopropyl-8-[2-oxo-4-(palmitoylamino)-1(2H)-pyrimidinyl]tetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-9-yl] O-phenyl carbonothioate C45H72N4O8SSi2 详情 详情
Extended Information