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【结 构 式】

【分子编号】12717

【品名】N-[1-[(2S)-2,3-Dihydroxypropyl]-2-oxo-1,2-dihydro-4-pyrimidinyl]benzamide

【CA登记号】

【 分 子 式 】C14H15N3O4

【 分 子 量 】289.29092

【元素组成】C 58.13% H 5.23% N 14.53% O 22.12%

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:(XXIII)

3) The reaction of 2(S),3-O-isopropylideneglycerol (XV) with methanesulfonyl chloride and triethylamine in dichloromethane gives the corresponding mesylate (XVI), which is condensed with cytosine (XII) by means of cesium carbonate as before yielding 1-[2(S),3-(isopropylidenedioxy)propyl]cytosine (XVII). The deprotection of (XVII) with aqueous acetic acid at 100 C affords the corresponding diol (XVIII), which is treated with trityl chloride, DMAP and triethylamine in DMF to give the monotrityl compound (XIX). The condensation of (XIX) with diethyl tosyloxymethylphosphonate (VIII) [obtained by reaction of diethylphosphite (XX) with paraformaldehyde, followed by tosylation with tosyl chloride] by a previous treatment of (XX) with DMF dimethylacetal, then condensation by means of NaH in DMF, and a final hydrolysis with hot aqueous acetic acid yields the 1-[2(S)-(diethoxyphosphorylmethoxy)-3-hydroxypropyl]cytosine (XIV) (already obtained), which is finally treated with bromotrimethylsilane as before. 4) The reaction of the acetonide (XVI) with N4-benzoylcytosine (XXI) by means of potassium tert-butoxide or cesium carbonate gives the condensation product (XXII), which is deprotected with HCl in acetic acid yielding the diol (XXIII). The reaction of (XXIII) with trityl chloride and DMAP in refluxing pyridine affords the monotritylated compound (XXIV), which is condensed with the phosphonate (VIII) by means of NaH in DMF to give the fully protected HPMPC compound (XXV). The successive deprotections of (XXV), first with HCl in dichloromethane to eliminate the trityl group yielding (XXVI), then with bromotrimethylsilane to obtain the free phosphono group giving (XXVII), and finally with concentrated aqueous NH4OH to eliminate the benzoyl group affords cidofovir. 5) The benzoylation of acetonide derivative (XVII) with benzoyl anhydride in refluxing pyridine gives the benzoyl citosine derivative (XXII) already obtained.

1 Fromtling, R.A.; Castaner, J.; Cidofovir. Drugs Fut 1996, 21, 10, 1003.
2 Bronson, J.J.; Ferrara, L.M.; Howell, H.G.; Brodfuehrer, P.R.; Martin, J.C.; A new synthesis of the potent and selective anti-herpesvirus agent (S)-1-[3-hydroxy-2-(phosphonylmethoxy)propyl]cytosine. Nucleosides Nucleotides 1990, 9, 6, 745-69.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(VIII) 12702 (diethoxyphosphoryl)methyl 4-methylbenzenesulfonate 31618-90-3 C12H19O6PS 详情 详情
(XII) 12706 Cytosine; 4-Amino-2(1H)-pyrimidinone 71-30-7 C4H5N3O 详情 详情
(XIV) 12708 diethyl [[(1S)-2-[4-amino-2-oxo-1(2H)-pyrimidinyl]-1-(hydroxymethyl)ethyl]oxy]methylphosphonate C12H22N3O6P 详情 详情
(XV) 12709 [(4S)-2,2-Dimethyl-1,3-dioxolan-4-yl]methanol 22323-82-6 C6H12O3 详情 详情
(XVI) 12710 [(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl methanesulfonate C7H14O5S 详情 详情
(XVII) 12711 4-Amino-1-[[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2(1H)-pyrimidinone C10H15N3O3 详情 详情
(XVIII) 12695 4-Amino-1-[(2S)-2,3-dihydroxypropyl]-2(1H)-pyrimidinone C7H11N3O3 详情 详情
(XIX) 12713 4-Amino-1-[(2S)-2-hydroxy-3-(trityloxy)propyl]-2(1H)-pyrimidinone C26H25N3O3 详情 详情
(XX) 12714 diethyl phosphonate; diethyl phosphite 762-04-9 C4H11O3P 详情 详情
(XXI) 12715 N-(2-Oxo-1,2-dihydro-4-pyrimidinyl)benzamide; N-Benzoylcytosine 26661-13-2 C11H9N3O2 详情 详情
(XXII) 12716 N-(1-[[(4S)-2,2-Dimethyl-1,3-dioxolan-4-yl]methyl]-2-oxo-1,2-dihydro-4-pyrimidinyl)benzamide C17H19N3O4 详情 详情
(XXIII) 12717 N-[1-[(2S)-2,3-Dihydroxypropyl]-2-oxo-1,2-dihydro-4-pyrimidinyl]benzamide C14H15N3O4 详情 详情
(XXIV) 12718 N-[1-[(2S)-2-Hydroxy-3-(trityloxy)propyl]-2-oxo-1,2-dihydro-4-pyrimidinyl]benzamide C33H29N3O4 详情 详情
(XXV) 12719 diethyl ([(1S)-2-[4-(benzoylamino)-2-oxo-1(2H)-pyrimidinyl]-1-[(trityloxy)methyl]ethyl]oxy)methylphosphonate C38H40N3O7P 详情 详情
(XXVI) 12720 diethyl [[(1S)-2-[4-(benzoylamino)-2-oxo-1(2H)-pyrimidinyl]-1-(hydroxymethyl)ethyl]oxy]methylphosphonate C19H26N3O7P 详情 详情
(XXVII) 12721 [[(1S)-2-[4-(Benzoylamino)-2-oxo-1(2H)-pyrimidinyl]-1-(hydroxymethyl)ethyl]oxy]methylphosphonic acid C15H18N3O7P 详情 详情
Extended Information