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【结 构 式】

【分子编号】42545

【品名】dimethyl 2-(2-[[(tert-butoxycarbonyl)(2,2,2-trifluoroethyl)amino]methyl]-4-methoxybenzyl)succinate

【CA登记号】

【 分 子 式 】C22H30F3NO7

【 分 子 量 】477.4779496

【元素组成】C 55.34% H 6.33% F 11.94% N 2.93% O 23.46%

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:(IX)

Bromination of 4-bromo-3-methyl anisole derivative (I) by means of NBS and light in CH2Cl2 and (BzO)2 affords derivative (II), which is then treated with protected trifluoroethane derivative (III) in DMF to give (IV). Alternatively, (II) can be converted into (IV) by first treating with 2,2,2-trifluoroethylamine (V) in DMSO followed by N-protection by means of Boc2O in CH2Cl2. Treatment of (IV) with dimethyl itaconate (VII) in the presence of Pd(OAc)2, P(o-tol)3, DIEA and propionitrile yields intermediate (VIII), which is then reduced by hydrogenolysis over Pd/C in EtOAc to afford butanoate (IX). Removal of the Boc protecting group of (IX) by treatment with TFA and anisole provides derivative (X), which is then cyclized by means of tripropylamine in refluxing xylenes to afford benzazepine derivative (XI) in its racemic form. Separation of the two enantiomers of (XI) by chiral HPLC affords (S)-(XII), which is demethylated with BBr3 in CH2Cl2 to yield (XIII). Treatment of N-oxide derivative (XIV) with 3-amino-1-propanol (XV) in tert-amyl alcohol in the presence of NaHCO3 yields derivative (XVI), which is then reacted with phenol derivative (XIII) in a Mitsunobu reaction with PPh3 and DEAD in THF/DMF to give ether derivative (XVII). Reduction of (XVII) with cyclohexene in isopropanol in the presence of Pd/C affords methyl acetate (XVIII), which is finally hydrolyzed by means of aqueous NaOH in dioxane.

1 Miller, W.H.; Bhatnager, P.K.; Alberts, D.P.; et al.; Discovery of orally active nonpeptide vitronectin receptor antagonists based on a 2-benzazepine gly-asp mimetic. J Med Chem 2000, 43, 1, 22.
2 Callahan, J.F.; Cousins, R.D.; Keenan, R.M.; Kwon, C.; Miller, W.H.; Uzinkas, I.N. (SmithKline Beecham plc); Vitronectin receptor antagonists. EP 0957917; WO 9814192 .
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) 42539 4-bromo-3-methylphenyl methyl ether; 1-bromo-4-methoxy-2-methylbenzene 27060-75-9 C8H9BrO 详情 详情
(II) 27552 1-bromo-2-(bromomethyl)-4-methoxybenzene C8H8Br2O 详情 详情
(III) 42540   C7H11F3NNaO2 详情 详情
(IV) 42541 tert-butyl 2-bromo-5-methoxybenzyl(2,2,2-trifluoroethyl)carbamate C15H19BrF3NO3 详情 详情
(V) 42542 2,2,2-trifluoroethylamine; 2,2,2-trifluoro-1-ethanamine 753-90-2 C2H4F3N 详情 详情
(VI) 42543 N-(2-bromo-5-methoxybenzyl)-2,2,2-trifluoro-1-ethanamine; N-(2-bromo-5-methoxybenzyl)-N-(2,2,2-trifluoroethyl)amine C10H11BrF3NO 详情 详情
(VII) 21416 dimethyl 2-methylenesuccinate 617-52-7 C7H10O4 详情 详情
(VIII) 42544 dimethyl 2-[(E)-(2-[[(tert-butoxycarbonyl)(2,2,2-trifluoroethyl)amino]methyl]-4-methoxyphenyl)methylidene]succinate C22H28F3NO7 详情 详情
(IX) 42545 dimethyl 2-(2-[[(tert-butoxycarbonyl)(2,2,2-trifluoroethyl)amino]methyl]-4-methoxybenzyl)succinate C22H30F3NO7 详情 详情
(X) 42546 dimethyl 2-(4-methoxy-2-[[(2,2,2-trifluoroethyl)amino]methyl]benzyl)succinate C17H22F3NO5 详情 详情
(XI) 42547 methyl 2-[8-methoxy-3-oxo-2-(2,2,2-trifluoroethyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-4-yl]acetate C16H18F3NO4 详情 详情
(XII) 42548 methyl 2-[(4S)-8-methoxy-3-oxo-2-(2,2,2-trifluoroethyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-4-yl]acetate C16H18F3NO4 详情 详情
(XIII) 42549 methyl 2-[(4S)-8-hydroxy-3-oxo-2-(2,2,2-trifluoroethyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-4-yl]acetate C15H16F3NO4 详情 详情
(XIV) 34524 2-chloro-1-pyridiniumolate 2402-95-1 C5H4ClNO 详情 详情
(XV) 18522 3-amino-1-propanol 156-87-6 C3H9NO 详情 详情
(XVI) 34525 2-[(3-hydroxypropyl)amino]-1-pyridiniumolate C8H12N2O2 详情 详情
(XVII) 42550 2-[(3-[[(4S)-4-(2-methoxy-2-oxoethyl)-3-oxo-2-(2,2,2-trifluoroethyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-8-yl]oxy]propyl)amino]-1-pyridiniumolate C23H26F3N3O5 详情 详情
(XVIII) 42551 methyl 2-[(4S)-3-oxo-8-[3-(2-pyridinylamino)propoxy]-2-(2,2,2-trifluoroethyl)-2,3,4,5-tetrahydro-1H-2-benzazepin-4-yl]acetate C23H26F3N3O4 详情 详情
Extended Information