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【结 构 式】

【分子编号】12699

【品名】(2S)-3-(Benzyloxy)-1,2-propanediol; (S)-(-)-1-Benzylglycerol

【CA登记号】17325-85-8

【 分 子 式 】C10H14O3

【 分 子 量 】182.21936

【元素组成】C 65.92% H 7.74% O 26.34%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(V)

2) The reaction of 2(R),3-O-isopropylideneglycerol (IV) with benzyl bromide by means of benzyltriethylammonium bromide (BTA) in refluxing aqueous NaOH gives (S)-3-O-benzylglycerol (V), which is monotritylated with 4-methoxytriphenylmethyl chloride (VI) and dimethylaminopyridine (DMAP) yielding the secondary alcohol (VII). The condensation of (VII) with diethyl tosyloxymethylphosphonate (VIII) by means of NaH in THF affords the fully protected phosphorylmethoxy derivative (IX), which is detritylated by treatment with aqueous acetic acid at 100 C to give 3-benzyloxy-2(S)-(diethoxyphosphorylmethoxy)-1-propanol (X). The reaction of (X) with methanesulfonyl chloride and triethylamine in dichloromethane yields the corresponding mesylate (XI), which is condensed with cytosine (XII) by means of cesium carbonate in hot DMF affording 1-[3-benzyloxy-2(S)-(diethoxyphosphorylmethoxy)propyl]cytosine (XIII). The debenzylation of (XIII) by treatment with Pd(OH)2 on carbon in refluxing ethanol/cyclohexene gives the corresponding alcohol (XIV), which is finally treated with bromotrimethylsilane in acetonitrile to eliminate the ethyl groups of the phosphonate.

1 Martin, J.C.; Webb, R.R. II, Wos, J.A.; Bronson, J.J.; Synthesis of (S)-N1-(3-hydroxy-2-phosphonylmethoxy)propylcytosine, (S)-HPMPC. Tetrahedron Lett 1988, 29, 5475-8.
2 Fromtling, R.A.; Castaner, J.; Cidofovir. Drugs Fut 1996, 21, 10, 1003.
3 Bronson, J.J.; Ghazzouli, I.; Hitchcock, M.J.M.; Webb, R.R. II, Martin, J.C.; Synthesis and antiviral activity of the nucleotide analogue (S)-1-[3-hydroxy-2-(phosphonylmethoxy)propyl]cytosine. J Med Chem 1989, 32, 7, 1457-63.
4 Martin, J.C.; Bronson, J.J.; Webb, R.R. II, Hitchcock, M.J.M.; Ghazzouli, I.; Synthesis and antiherpesvirus activity of (S)-1-((3-hydroxy-2-phosphonylmethoxy)propyl)cytosine (HPMPC) and related nucleotide analogues. Nucleosides Nucleotides 1989, 8, 5-6, 923-6.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(IV) 12698 [(4R)-2,2-Dimethyl-1,3-dioxolan-4-yl]methanol 14347-78-5 C6H12O3 详情 详情
(V) 12699 (2S)-3-(Benzyloxy)-1,2-propanediol; (S)-(-)-1-Benzylglycerol 17325-85-8 C10H14O3 详情 详情
(VI) 12700 4-[Chloro(diphenyl)methyl]phenyl methyl ether; 1-[Chloro(diphenyl)methyl]-4-methoxybenzene; p-Anisylchlorodiphenylmethane 14470-28-1 C20H17ClO 详情 详情
(VII) 12701 (2R)-1-(Benzyloxy)-3-[(4-methoxyphenyl)(diphenyl)methoxy]-2-propanol C30H30O4 详情 详情
(VIII) 12702 (diethoxyphosphoryl)methyl 4-methylbenzenesulfonate 31618-90-3 C12H19O6PS 详情 详情
(IX) 12703 diethyl [((1R)-2-(benzyloxy)-1-[[(4-methoxyphenyl)(diphenyl)methoxy]methyl]ethyl)oxy]methylphosphonate C35H41O7P 详情 详情
(X) 12704 diethyl [[(1S)-2-(benzyloxy)-1-(hydroxymethyl)ethyl]oxy]methylphosphonate C15H25O6P 详情 详情
(XI) 12705 (2R)-3-(benzyloxy)-2-[(diethoxyphosphoryl)methoxy]propyl methanesulfonate C16H27O8PS 详情 详情
(XII) 12706 Cytosine; 4-Amino-2(1H)-pyrimidinone 71-30-7 C4H5N3O 详情 详情
(XIII) 12707 diethyl ([(1S)-2-[4-amino-2-oxo-1(2H)-pyrimidinyl]-1-[(benzyloxy)methyl]ethyl]oxy)methylphosphonate C19H28N3O6P 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

合成路线2

该中间体在本合成路线中的序号:(I)

Silylation of 1-O-benzylglycerol (I) with tert-butyldimethylsilyl chloride afforded the 1,3-diprotected glycerol (II). After methylation of the free secondary hydroxyl of (II) using MeI and NaH to yield (III), its O-benzyl protecting group was cleaved by hydrogenolysis, yielding (IV). Acylation of alcohol (IV) with oleoyl chloride (V) in the presence of pyridine provided the corresponding ester (VI). Desilylation of (VI) to give alcohol (VII) was carried out by treatment with tetrabutylammonium fluoride. Alcohol (VII) was then condensed with (2-cyanoethyl)-N,N,N',N'-tetraisopropylphosphorodiamidite (VIII) in the presence of 3-hydroxypropionitrile and tetrazole, followed by reaction with elemental sulfur to furnish the thiophosphate (IX). Finally, cleavage of the cyanoethyl ester groups with Et3N and bis(trimethylsilyl)acetamide provided the title compound.

1 Boyd, E.A.; Umansky, S.R.; Baxter, A.D.; Price, S.; Goddard, J.G.; Picker, D.H.; Wijkmans, J.C.H.M. (Evotec Biosystems AG; LXR Biotechnology Inc.); Compsns. containing lysophosphatidic acids which inhibit apoptosis and uses thereof. WO 9947101 .
2 Vmansky, S.R.; Goddard, J.G.; Picker, D.H.; Bathurst, I.C.; Bradley, J.D.; Foehr, M.W. (LXR Biotechnology Inc.); Compsns. containing lysophosphatidic acids which inhibit apoptosis and uses thereof. WO 9841213 .
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) 12699 (2S)-3-(Benzyloxy)-1,2-propanediol; (S)-(-)-1-Benzylglycerol 17325-85-8 C10H14O3 详情 详情
(II) 48651 1-(benzyloxy)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-propanol C16H28O3Si 详情 详情
(III) 48652 benzyl 3-[[tert-butyl(dimethyl)silyl]oxy]-2-methoxypropyl ether; [3-(benzyloxy)-2-methoxypropoxy](tert-butyl)dimethylsilane C17H30O3Si 详情 详情
(IV) 48653 3-[[tert-butyl(dimethyl)silyl]oxy]-2-methoxy-1-propanol C10H24O3Si 详情 详情
(V) 28280 Oleoyl chloride; (E)-9-Octadecenoyl chloride C18H33ClO 详情 详情
(VI) 48654 3-[[tert-butyl(dimethyl)silyl]oxy]-2-methoxypropyl (Z)-9-octadecenoate C28H56O4Si 详情 详情
(VII) 48655 3-hydroxy-2-methoxypropyl (Z)-9-octadecenoate C22H42O4 详情 详情
(VIII) 48656 2-Cyanoethyl N,N,N',N'-tetraisopropylphosphoramidite; 2-Cyanoethyl N,N,N',N'-tetraisopropylphosphorodiamidite; Bis(diisopropylamino)-2-cyanoethoxyphosphine 102691-36-1 C15H32N3OP 详情 详情
(IX) 48657 3-([(2-cyanoethoxy)[(2-cyanoethyl)sulfanyl]phosphoryl]oxy)-2-methoxypropyl (Z)-9-octadecenoate C28H49N2O6PS 详情 详情
Extended Information