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【结 构 式】

【分子编号】29535

【品名】5-bromo-1-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-1,4-pentanedione

【CA登记号】

【 分 子 式 】C11H16BrNO4

【 分 子 量 】306.15638

【元素组成】C 43.15% H 5.27% Br 26.1% N 4.58% O 20.9%

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:(IV)

The reaction of succinic anhydride (I) with the lithium salt of the chiral oxazolidinone (II) in THF gives 3-(hydroxysucccinyl)-4(S)-isopropyloxazolidin-2-one (III), which is treated successively with oxalyl chloride, CH2N2 and HBr to yield the bromomethyl derivative (IV). The cyclization of (IV) with thiourea in refluxing isopropanol affords the 2-aminothiazol derivative (V), which is protected with 2,2,2-trichloroethyl chloroformate by means of DIEA and DMAP in dichloromethane giving the carbamate (VI). The reaction of (VI) with tert-butyl 2-bromoacetate (VII) by means of sodium hexamethyldisilazane (NaHMDS) in THF yields the chiral butyrate (VIII), which is hydrolyzed with TFA in dichloromethane to the chiral butyric acid (IX). The condensation of (IX) with the intermediate amine (X) by means of BOP-PF6 and DIEA in DMF affords the corresponding amide (XI), which is treated with magnesium methoxide in methanol to eliminate the oxazolidinone group (the chiral inductor) providing the methyl ester (XII). The hydrolysis of (XII) with NaOH, followed by condensation with amine (XIII) (J Org Chem 1988, 53: 6109; J Med Chem 1993, 36: 449) gives the protected intermediate (XIV), which is finally deprotected by reaction with Zn/HCl in aqueous dioxane.

1 Simoneau, B.; Lavallee, P.; Anderson, P.C.; et al.; Discovery of non-peptidic P2-P3 butanediamide renin inhibitors with high oral efficacy. Bioorg Med Chem 1999, 7, 3, 489.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
10180 Thiourea 62-56-6 CH4N2S 详情 详情
13664 1,1,1-Trichloro-2-[(chlorocarbonyl)oxy]ethane; 2,2,2-Trichloroethyl chloroformate 17341-93-4 C3H2Cl4O2 详情 详情
(I) 11291 Dihydro-2,5-furandione; Succinic anhydride 108-30-5 C4H4O3 详情 详情
(II) 29533 [(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]lithium C6H10LiNO2 详情 详情
(III) 29534 4-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-4-oxobutyric acid C10H15NO5 详情 详情
(IV) 29535 5-bromo-1-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-1,4-pentanedione C11H16BrNO4 详情 详情
(V) 29536 (4S)-3-[3-(2-amino-1,3-thiazol-4-yl)propanoyl]-4-isopropyl-1,3-oxazolidin-2-one C12H17N3O3S 详情 详情
(VI) 29537 2,2,2-trichloroethyl 4-[3-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-3-oxopropyl]-1,3-thiazol-2-ylcarbamate C15H18Cl3N3O5S 详情 详情
(VII) 17430 2-Bromoacetic acid tert-butyl ester; tert-butyl 2-bromoacetate; tert-Butyl bromoacetate 5292-43-3 C6H11BrO2 详情 详情
(VIII) 29538 tert-butyl (3R)-4-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-4-oxo-3-[(2-[[(2,2,2-trichloroethoxy)carbonyl]amino]-1,3-thiazol-4-yl)methyl]butanoate C21H28Cl3N3O7S 详情 详情
(IX) 29539 (3R)-4-[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]-4-oxo-3-[(2-[[(2,2,2-trichloroethoxy)carbonyl]amino]-1,3-thiazol-4-yl)methyl]butyric acid C17H20Cl3N3O7S 详情 详情
(X) 29540 2-[(cyclohexylmethyl)amino]-N-methyl-N-[2-(2-pyridinyl)ethyl]acetamide C17H27N3O 详情 详情
(XI) 29541 2,2,2-trichloroethyl 4-((2R)-4-[(cyclohexylmethyl)(2-[methyl[2-(2-pyridinyl)ethyl]amino]-2-oxoethyl)amino]-2-[[(4S)-4-isopropyl-2-oxo-1,3-oxazolidin-3-yl]carbonyl]-4-oxobutyl)-1,3-thiazol-2-ylcarbamate C34H45Cl3N6O7S 详情 详情
(XII) 29542 methyl (2R)-4-[(cyclohexylmethyl)(2-[methyl[2-(2-pyridinyl)ethyl]amino]-2-oxoethyl)amino]-4-oxo-2-[(2-[[(2,2,2-trichloroethoxy)carbonyl]amino]-1,3-thiazol-4-yl)methyl]butanoate C29H38Cl3N5O6S 详情 详情
(XIII) 29543 (2S,3R,4S)-2-amino-1-cyclohexyl-6-methyl-3,4-heptanediol C14H29NO2 详情 详情
(XIV) 29544 2,2,2-trichloroethyl 4-[(2R)-2-([[(1S,2R,3S)-1-(cyclohexylmethyl)-2,3-dihydroxy-5-methylhexyl]amino]carbonyl)-4-[(cyclohexylmethyl)(2-[methyl[2-(2-pyridinyl)ethyl]amino]-2-oxoethyl)amino]-4-oxobutyl]-1,3-thiazol-2-ylcarbamate C42H63Cl3N6O7S 详情 详情
Extended Information