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【结 构 式】

【分子编号】19232

【品名】(2S)-1-(6-amino-9H-purin-9-yl)-2-propanol

【CA登记号】

【 分 子 式 】C8H11N5O

【 分 子 量 】193.20844

【元素组成】C 49.73% H 5.74% N 36.25% O 8.28%

与该中间体有关的原料药合成路线共 5 条

合成路线1

该中间体在本合成路线中的序号:(VII)

1) The protection of isobutyl D-(+)-lactate (I) with dihydropyran (DHP)/HCl in DMF gives the tetrahydropyranyloxy derivative (II), which is reduced with bis(2-methoxyethoxy)aluminum hydride in refluxing ether/ toluene yielding 2(R)-(tetrahydropyranyloxy)-1-propanol (III). The tosylation of (III) with tosyl chloride as usual affords the expected tosylate (VI), which is condensed with adenine (V) by means of Cs2CO3 in hot DMF, affording 9-[2(R)-(tetrahydropyranyloxy)propyl]adenine (VI). The deprotection of (VI) with sulfuric acid affords 9-[2(R)-hydroxypropyl]adenine (VII), which is N-benzoylated with benzoyl chloride/chlorotrimethylsilane in pyridine to give the benzamide (VIII), which is condensed with tosyl-oxymethylphosphonic acid diisopropyl ester (IX) by means of NaH in DMF to yield 9-[2(R)-(diisopropoxyphosphorylmethoxy)propyl]adenine (X). Finally, this compound is hydrolyzed by means of bromotrimethylsilane in acetonotrile.

1 Masojídková, M.; Holý, A.; Synthesis of enantiomeric N-(2-phosphonomethoxypropyl) derivatives of purine and pyrimidine bases. I. The stepwise approach. Coll Czech Chem Commun 1995, 60, 7, 1196.
2 Sorbera, L.A.; Castañer, J.; (R)-PMPA and Bis(POC)PMPA. Drugs Fut 1998, 23, 12, 1279.
3 Holy, A.; Dvorakova, H.; DeClercq, E.D.A.; Balzarini, J.M.R. (Gilead Sciences Inc.; Stichting Rega Vzw); Antiretroviral enantiomeric nucleotide analogs. EP 0654037; JP 1996503927; US 6057305; WO 9403467 .
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) 19226 isobutyl (2R)-2-hydroxypropanoate 61597-96-4 C7H14O3 详情 详情
(II) 19227 isobutyl (2R)-2-(tetrahydro-2H-pyran-2-yloxy)propanoate C12H22O4 详情 详情
(III) 19228 (2S)-2-(tetrahydro-2H-pyran-2-yloxy)-1-propanol 76946-21-9 C8H16O3 详情 详情
(IV) 19229 (2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl 4-methylbenzenesulfonate C15H22O5S 详情 详情
(V) 10343 9H-Purin-6-amine; 9H-Purin-6-ylamine; Adenine 73-24-5 C5H5N5 详情 详情
(VI) 19231 9-[(2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]-9H-purin-6-amine; 9-[(2R)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]-9H-purin-6-ylamine C13H19N5O2 详情 详情
(VII) 19232 (2S)-1-(6-amino-9H-purin-9-yl)-2-propanol C8H11N5O 详情 详情
(VIII) 19233 N-[9-[(2S)-2-hydroxypropyl]-9H-purin-6-yl]benzamide C15H15N5O2 详情 详情
(IX) 19234 (diisopropoxyphosphoryl)methyl 4-methylbenzenesulfonate C14H23O6PS 详情 详情
(X) 19235 diisopropyl [[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonate C15H26N5O4P 详情 详情

合成路线2

该中间体在本合成路线中的序号:(VII)

3) The catalytic hydrogenation of (S)-glycidol (XVI) over Pd/C gives the (R)-1,2-propanediol (XVII), which is esterified with diethyl carbonate (XVIII)/NaOEt, yielding the cyclic carbonate (XIX). The reaction of (XIX) with adenine (V) by means of NaOH in DMF affords 9-[2(R)-hydroxypropyl]adenine (VII), which is condensed with tosyloxymethylphosphonic acid diethyl ester (XX) by means of lithium tert-butoxide in THF, giving 9-[2(R)-(diethoxyphosphorylmethoxy)propyl]adenine (XXI). Finally, this compound is hydrolyzed with bromotrimethylsilane as before. Compound (XX) is obtained by reaction of diethyl phosphite (XXII) with paraformaldehyde, yielding hydroxy- methylphosphonic acid diethyl ester (XXIII), which is finally tosylated as usual.

1 Leone-Bay, A.; et al.; 4-(4-Salicyloylaminophenyl)butyric acid as a novel oral delivery agent for recombinant human growth hormone. 211th ACS Natl Meet (March 24-28, New Orleans) 1996, Abst MEDI 006.
2 Schultze, L.M.; Chapman, H.H.; Dubree, N.J.P.; et al.; Practical synthesis of the anti-HIV drug, PMPA. Tetrahedron Lett 1998, 39, 14, 1853.
3 Sorbera, L.A.; Castañer, J.; (R)-PMPA and Bis(POC)PMPA. Drugs Fut 1998, 23, 12, 1279.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(V) 10343 9H-Purin-6-amine; 9H-Purin-6-ylamine; Adenine 73-24-5 C5H5N5 详情 详情
(VII) 19232 (2S)-1-(6-amino-9H-purin-9-yl)-2-propanol C8H11N5O 详情 详情
(XVI) 19241 (2S)oxiranylmethanol 60456-23-7 C3H6O2 详情 详情
(XVII) 19242 (2S)-1,2-propanediol 4254-15-3 C3H8O2 详情 详情
(XVIII) 17470 diethyl carbonate; diethylcarbonate 105-58-8 C5H10O3 详情 详情
(XIX) 19244 (4S)-4-methyl-1,3-dioxolan-2-one C4H6O3 详情 详情
(XX) 12702 (diethoxyphosphoryl)methyl 4-methylbenzenesulfonate 31618-90-3 C12H19O6PS 详情 详情
(XXI) 19246 diethyl [[(1S)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonate C13H22N5O4P 详情 详情
(XXII) 12714 diethyl phosphonate; diethyl phosphite 762-04-9 C4H11O3P 详情 详情
(XXIII) 19248 diethyl hydroxymethylphosphonate 3084-40-0 C5H13O4P 详情 详情

合成路线3

该中间体在本合成路线中的序号:(III)

Alkylation of adenine (I) by means of (R)-propylene carbonate (II) in the presence of NaOH in hot DMF provided (R)-9-(2-hydroxypropyl)adenine (III). This was condensed with tosylate (IV) using magnesium tert-butoxide to furnish the alkoxymethylphosphonate (V). Phosphonic acid (VI) was then obtained by hydrolysis of the phosphate ester groups with bromotrimethylsilane. Monophenyl phosphonate (IX) was prepared by either coupling of acid (VI) with phenol (VII) in the presence of DCC or by previous activation of (VI) with SOCl2, and then coupling with phenoxytrimethylsilane (VIII). Further activation of (IX) with SOCl2 to give (X), followed by its condensation with L-alanine isopropyl ester (XI), yielded phosphonamide (XII) as a mixture of diastereomers. The title isomer was then isolated by several alternative procedures, including column chromatography over various supports and fractional crystallization.

1 Prisbe, E.J.; Lee, W.A.; Rohloff, J.C.; Becker, M.W.; Chapman, H.H.; Cihlar, T.; Eisenberg, E.J.; He, G.-X.; Kernan, M.R.; Sparacino, M.L. (Gilead Sciences Inc.); Prodrugs of phosphonate nucleotide analogues and methods for selecting and making same. WO 0208241 .
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) 10343 9H-Purin-6-amine; 9H-Purin-6-ylamine; Adenine 73-24-5 C5H5N5 详情 详情
(II) 19244 (4S)-4-methyl-1,3-dioxolan-2-one C4H6O3 详情 详情
(III) 19232 (2S)-1-(6-amino-9H-purin-9-yl)-2-propanol C8H11N5O 详情 详情
(IV) 12072 Dibromoneopentyl glycol; 2,2-Bis(bromomethyl)-1,3-propanediol 3296-90-0 C5H10Br2O2 详情 详情
(V) 19246 diethyl [[(1S)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonate C13H22N5O4P 详情 详情
(VI) 19252 [[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonic acid C9H14N5O4P 详情 详情
(VII) 23540 Phenol 108-95-2 C6H6O 详情 详情
(VIII) 58583 Trimethylsilylphenoxide; Phenoxytrimethylsilane 1529-17-5 C9H14OSi 详情 详情
(IX) 58584 phenyl hydrogen {[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy}methylphosphonate C15H18N5O4P 详情 详情
(X) 58585 phenyl {[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy}methylphosphonate chloride C15H17ClN5O3P 详情 详情
(XI) 58586 isopropyl (2S)-2-aminopropanoate C6H13NO2 详情 详情
(XII) 58587 isopropyl (2S)-2-{[({[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy}methyl)(phenoxy)phosphoryl]amino}propanoate C21H29N6O5P 详情 详情

合成路线4

该中间体在本合成路线中的序号:(IV)

 

1 Schultze LM, Chapman HH, Dubree NJ,et aL. 1998.Practical synthesis of the anti-HIV drug, PMPA. Tetrahedron Lett.,39(14):1853 ~1856
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) 19241 (2S)oxiranylmethanol 60456-23-7 C3H6O2 详情 详情
(II) 66829 (R)-propane-1,2-diol 4254-14-2 C3H8O2 详情 详情
(III) 19244 (4S)-4-methyl-1,3-dioxolan-2-one C4H6O3 详情 详情
(IV) 19232 (2S)-1-(6-amino-9H-purin-9-yl)-2-propanol C8H11N5O 详情 详情
(V) 19246 diethyl [[(1S)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonate C13H22N5O4P 详情 详情

合成路线5

该中间体在本合成路线中的序号:(VII)

 

1 Holy A, Dvorakovs H, Declercq ED, et al. Preparation of antiretroviral enantiomeric nucleotide analogs. WO 9403467
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) 66830 (S)-ethyl 2-hydroxypropanoate   C5H10O3 详情 详情
(II) 66831 (2S)-ethyl 2-((tetrahydro-2H-pyran-2-yl)oxy)propanoate 73208-70-5 C10H18O4 详情 详情
(III) 19228 (2S)-2-(tetrahydro-2H-pyran-2-yloxy)-1-propanol 76946-21-9 C8H16O3 详情 详情
(IV) 19229 (2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl 4-methylbenzenesulfonate C15H22O5S 详情 详情
(V) 10343 9H-Purin-6-amine; 9H-Purin-6-ylamine; Adenine 73-24-5 C5H5N5 详情 详情
(VI) 19231 9-[(2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]-9H-purin-6-amine; 9-[(2R)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]-9H-purin-6-ylamine C13H19N5O2 详情 详情
(VII) 19232 (2S)-1-(6-amino-9H-purin-9-yl)-2-propanol C8H11N5O 详情 详情
(VIII) 19233 N-[9-[(2S)-2-hydroxypropyl]-9H-purin-6-yl]benzamide C15H15N5O2 详情 详情
(IX) 19234 (diisopropoxyphosphoryl)methyl 4-methylbenzenesulfonate C14H23O6PS 详情 详情
(X) 19246 diethyl [[(1S)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methylphosphonate C13H22N5O4P 详情 详情
Extended Information