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【结 构 式】

【分子编号】16591

【品名】benzyl (1S,2S,4S)-1-benzyl-4-[[(benzyloxy)carbonyl]amino]-2-hydroxy-5-phenylpentylcarbamate

【CA登记号】

【 分 子 式 】C34H36N2O5

【 分 子 量 】552.67032

【元素组成】C 73.89% H 6.57% N 5.07% O 14.47%

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:(VII)

The oxidation of N-(benzyloxycarbonyl)-L-phenylalaninol (I) with oxalyl chloride in DMSO gives the corresponding aldehyde (II), which by dimerization with Zn dust in dichloromethane yields (2S,3R,4R,5S)-2,5-bis(benzyloxycarbonylamino)-1,6-diphenylhexane-3,4-diol (III) [along with the (2S,3S,4S,5S)-isomer]. The reaction of (III) with alpha-acetoxyisobutyryl bromide (IV) in hexane/dichloromethane affords (2S,3R,4R,5S)-2,5-bis(benzyloxycarbonylamino)-4-bromo-1,6-diphenylhexan-3-ol acetate ester (V), which is converted into the corresponding epoxide (VI) with NaOH in dioxane/water. The reduction of the epoxide (VI) with NaBH4 in THF affords (2S,3S,5S)-2,5-bis(benzyloxycarbonylamino)-1,6-diphenylhexan-3-ol (VII), which is deprotected with Ba(OH)2 in refluxing dioxane/water yielding the corresponding diamine (VIII). The cyclization of (VIII) with phenylboronic acid (IX) in refluxing toluene gives (4S,6S)-6-[1(S)-amino-2-phenylethyl]-4-benzyl-2-phenyl-1,3,2-oxaazaborinane (X), which is condensed with (5-thiazolylmethyl)(4-nitrophenyl)carbonate (XI) in THF to afford (2S,3S,5S)-5-amino-1,6-diphenyl-2-(5-thiazolylmethoxycarbonylamino) hexan-3-ol (XII). Finally, this compound is condensed with N-[N-(2-isopropylthiazol-4-ylmethyl)-N-methylaminocarbonyl]-L-valine (XIII) by means of 1-hydroxybenzotriazole (HBT) and N-[3-(dimethylamino)propyl]-N'-ethylcarbodiimide (DEC) in THF.

1 Graul, A.; Castañer, J.; Ritonavir. Drugs Fut 1996, 21, 7, 700.
2 Al-Razzak, L.; Marsh, K.C.; Manning, L.P.; Kaul, D. (Abbott Laboratories Inc.); Pharmaceutical compsns. containing HIV protease inhibitors. EP 0732923; US 5484801; WO 9520384 .
3 Kempf, D.J.; Norbeck, D.W.; Sham, H.L.; Zhao, C.; Sowin, T.J.; Reno, D.S.; Haight, A.R.; Cooper, A.J. (Abbott Laboratories Inc.); Retroviral protease inhibiting cpds. EP 0674513; EP 0727419; JP 1996505844; JP 1997118679; JP 1998087639; WO 9414436 .
4 Flentge, C.; Kempf, D.; Marsh, K.; et al.; Symmetry-based inhibitors of HIV protease with high oral bioavailability. 207th ACS Natl Meet (March 13-17, San Diego) 1994, Abst MEDI 35.
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) 16585 benzyl N-[(1S)-1-benzyl-2-hydroxyethyl]carbamate C17H19NO3 详情 详情
(II) 16586 benzyl N-[(1S)-1-benzyl-2-oxoethyl]carbamate C17H17NO3 详情 详情
(III) 16587 benzyl (1S,2R,3R,4S)-1-benzyl-4-[[(benzyloxy)carbonyl]amino]-2,3-dihydroxy-5-phenylpentylcarbamate C34H36N2O6 详情 详情
(IV) 12806 2-bromo-1,1-dimethyl-2-oxoethyl acetate; alpha-Acetoxy-isobutyryl bromide 40635-67-4 C6H9BrO3 详情 详情
(V) 16589 (1R,2R,3S)-3-[[(benzyloxy)carbonyl]amino]-1-((1S)-1-[[(benzyloxy)carbonyl]amino]-2-phenylethyl)-2-bromo-4-phenylbutyl acetate C36H37BrN2O6 详情 详情
(VI) 16590 benzyl (1S)-1-[(2R,3R)-3-((1S)-1-[[(benzyloxy)carbonyl]amino]-2-phenylethyl)oxiranyl]-2-phenylethylcarbamate C34H34N2O5 详情 详情
(VII) 16591 benzyl (1S,2S,4S)-1-benzyl-4-[[(benzyloxy)carbonyl]amino]-2-hydroxy-5-phenylpentylcarbamate C34H36N2O5 详情 详情
(VIII) 16592 (2S,3S,5S)-2,5-diamino-1,6-diphenyl-3-hexanol C18H24N2O 详情 详情
(IX) 16593 Phenylboronic acid;Benzeneboronic acid;Phenylboron dihydroxide 98-80-6 C6H7BO2 详情 详情
(X) 16594 (1S)-1-[(4S,6S)-4-benzyl-2-phenyl-1,3,2-oxazaborinan-6-yl]-2-phenylethylamine; (1S)-1-[(4S,6S)-4-benzyl-2-phenyl-1,3,2-oxazaborinan-6-yl]-2-phenyl-1-ethanamine C24H27BN2O 详情 详情
(XI) 16595 4-nitrophenyl 1,3-thiazol-5-ylmethyl carbonate 144163-97-3 C11H8N2O5S 详情 详情
(XII) 16596 1,3-thiazol-5-ylmethyl N-[(1S,2S,4S)-4-amino-1-benzyl-2-hydroxy-5-phenylpentyl]carbamate C23H27N3O3S 详情 详情
(XIII) 16597 (2S)-2-([[[(2-isopropyl-1,3-thiazol-4-yl)methyl](methyl)amino]carbonyl]amino)-3-methylbutyric acid C14H23N3O3S 详情 详情
Extended Information