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【结 构 式】

【分子编号】37289

【品名】ethyl 2-[(3S)-3-([(2R)-2-benzyl-3-[(benzyloxy)amino]propanoyl]amino)-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]acetate

【CA登记号】

【 分 子 式 】C31H35N3O5

【 分 子 量 】529.63612

【元素组成】C 70.3% H 6.66% N 7.93% O 15.1%

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:(XII)

Sodium azide (I) is treated with sulfuric acid to give hydrazoic acid (II), which is condensed with 1-tetralone (III) in hot aqueous sulfuric acid yielding 2,3,4,5-tetrahydro-1H-1-benzazepin-2-one (IV). The bromination of (IV) with Br2 in chloroform affords the 3-bromo derivative (V), which is treated with sodium azide in DMSO to give the corresponding azido derivative (VI). The condensation of (VI) with ethyl 2-bromoacetate (VII) by means of KOH and tetrabutylammonium bromide in THF yields the adduct (VIII). The azido group of (VIII) is reduced with H2 over Pd/C in ethanol the amine (IX) as a racemic mixture, which is submitted to optical resolution with L-tartaric acid affording the desired (S)-enantiomer (X). The condensation of intermediate (X) with 2(R)-benzyl-3-benzyloxyamino)propionic acid (XI) by means of HOBT and EDAC in dichloromethane provides the amide (XII), which is formylated with formic acid and acetic anhydride yielding the formamide (XIII). The debenzylation of (XIII) with H2 over Pd/C in methanol affords the intermediate (XIV), which is finally hydrolyzed with NaOH in methanol.

1 Asaad, M.M.; Robl, J.A.; Simpkins, L.M.; N-Formyl hydroxylamine containing dipeptides: Generation of a new class of vasopeptidase inhibitors. Bioorg Med Chem Lett 2000, 10, 3, 257.
2 Robl, J.A. (Bristol-Myers Squibb Co.); N-Formyl hydroxylamine containing cpds. useful as ACE inhibitors and/or NEP inhibitors. WO 9738705 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(II) 37288 1H-triazirine HN3 详情 详情
(III) 20720 3,4-dihydro-1(2H)-naphthalenone 529-34-0 C10H10O 详情 详情
(IV) 30511 1,3,4,5-tetrahydro-2H-1-benzazepin-2-one C10H11NO 详情 详情
(V) 20723 3-bromo-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one C10H10BrNO 详情 详情
(VI) 20891 3-azido-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one C10H10N4O 详情 详情
(VII) 16640 Ethyl 2-bromoacetate; Ethyl bromoacetate 105-36-2 C4H7BrO2 详情 详情
(VIII) 20893 ethyl 2-(3-azido-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl)acetate C14H16N4O3 详情 详情
(IX) 37292 ethyl 2-(3-amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl)acetate C14H18N2O3 详情 详情
(X) 20894 ethyl 2-[(3S)-3-amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]acetate 109010-60-8 C14H18N2O3 详情 详情
(XI) 37283 (2R)-2-benzyl-3-[(benzyloxy)amino]propionic acid C17H19NO3 详情 详情
(XII) 37289 ethyl 2-[(3S)-3-([(2R)-2-benzyl-3-[(benzyloxy)amino]propanoyl]amino)-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]acetate C31H35N3O5 详情 详情
(XIII) 37290 ethyl 2-[(3S)-3-([(2R)-2-benzyl-3-[(benzyloxy)(formyl)amino]propanoyl]amino)-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]acetate C32H35N3O6 详情 详情
(XIV) 37291 ethyl 2-[(3S)-3-([(2R)-2-benzyl-3-[formyl(hydroxy)amino]propanoyl]amino)-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepin-1-yl]acetate C25H29N3O6 详情 详情
Extended Information