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【结 构 式】

【分子编号】69273

【品名】(1S,4S,5S)-tert-butyl 3-oxo-2-oxabicyclo[2.2.1]heptane-5-carboxylate

【CA登记号】 

【 分 子 式 】C11H16O4

【 分 子 量 】212.24564

【元素组成】C 62.25% H 7.6% O 30.15%

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)

Lactone acid (VI) is amidated with N-methylhex-5-enamine (VII) in the presence of O-(7-azabenzotriazol-1-yl)-N,N,N’,N’-tetramethyluronium hexafluorophosphate (HATU) and DIEA in DMF at 0 °C. The resulting lactone amide (VIII) is opened with LiOH in THF/methanol/H2O and the intermediate carboxylic acid is then condensed with the hydrochloride of amine (IX) by means of DIAD and HATU in DMF, producing hydroxyamide (X) . Finally, alcohol (X) and quinolinol derivative (XI) are coupled under Mitsunobu conditions (PPh3, DIAD) in THF .
Alternatively, lactone acid (VI) is esterified with di-tert-butyl dicarbonate (Boc2O) in the presence of DMAP in CH2Cl2, providing the tert-butyl-protected lactone (XII), which is then opened by treatment with LiOH in dioxane/H2O at 0 °C. Amidation of the in situ-generated acid with the vinylcyclopropyl amino acid ester (IX) (in its hydrochloride form) in DMF at 0 °C gives amino acid (XIII), which is coupled with the quinoline moiety (XI) by a Mitsunobu reaction (PPh3, DIAD) in THF at 0 °C, affording adduct (XIV), with the proper configuration of the chiral center at position 3 of the cyclopentane. Subsequent deprotection of the tert-butyl ester (XIV) with triethylsilane and TFA in CH2Cl2 followed by condensation of the resulting acid with alkenylamine (VII) by means of DIAD and HATU in DMF at 0 °C yields the desired noncyclic diene (I) .

1 Raboisson, P., De Kock, H., Rosenquist, A. et al. Structure-activity relationship study on a novel series of cyclopentane-containing macrocyclic inhibitors of the hepatitis C virus NS3/4A protease leading to the discovery of TMC435350. Bioorg Med Chem Lett 2008, 18(17): 4853-8.
2 Stokbroekx, S.C.M., Leys, C., Swinney, K.A., Wuyts, S., Horvath, A. (Tibotec Pharmaceuticals Ltd.). Polymorphic forms of a macrocyclic inhibitor of HCV. WO 2008092954.
3 Raboisson, P.J.-M.B., De Kock, H.A., Hu, L. et al. (Tibotec Pharmaceuticals Ltd.; Medivir AB). Macrocyclic inhibitors of hepatitis C virus. CA 2616580, EP 1912999, JP 2009502889, WO 2007014926.
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) 69263 (1S,2R)-ethyl 1-((1S,2S,4S)-2-(hex-5-en-1-yl(methyl)carbamoyl)-4-((2-(4-isopropylthiazol-2-yl)-7-methoxy-8-methylquinolin-4-yl)oxy)cyclopentanecarboxamido)-2-vinylcyclopropanecarboxylate   C39H50N4O6S 详情 详情
(VI) 69267 (1S,4S,5S)-3-oxo-2-oxabicyclo[2.2.1]heptane-5-carboxylic acid   C7H8O4 详情 详情
(VII) 69268 N-methylhex-5-enamine;N-methylhex-5-en-1-amine   C7H15N 详情 详情
(VIII) 69269 (1R,4S)-N-(hex-5-en-1-yl)-N-methyl-3-oxo-2-oxabicyclo[2.2.1]heptane-5-carboxamide   C14H21NO3 详情 详情
(IX) 69270 (1R,2S)-ethyl 1-amino-2-vinylcyclopropanecarboxylate 746657-36-3 C8H13NO2 详情 详情
(X) 69271 (1R,2S)-ethyl 1-((1S,2S,4R)-2-(hex-5-en-1-yl(methyl)carbamoyl)-4-hydroxycyclopentanecarboxamido)-2-vinylcyclopropanecarboxylate   C22H34N2O5 详情 详情
(XI) 69272 7-methoxy-8-methyl-2-[4-(1-methylethyl)-2-thiazolyl]-2-4-Quinolinol;(4-isopropylthiazol-2-yl)-7-methoxy-8-methylquinolin-4-ol 923289-21-8 C17H18N2O2S 详情 详情
(XII) 69273 (1S,4S,5S)-tert-butyl 3-oxo-2-oxabicyclo[2.2.1]heptane-5-carboxylate   C11H16O4 详情 详情
(XIII) 69274 (1S,2S,4S)-tert-butyl 2-(((1S,2S)-1-(ethoxycarbonyl)-2-vinylcyclopropyl)carbamoyl)-4-hydroxycyclopentanecarboxylate   C19H29NO6 详情 详情
(XIV) 69275 (1S,2S,4S)-tert-butyl 2-(((1S,2S)-1-(ethoxycarbonyl)-2-vinylcyclopropyl)carbamoyl)-4-((2-(4-isopropylthiazol-2-yl)-7-methoxy-8-methylquinolin-4-yl)oxy)cyclopentanecarboxylate   C36H45N3O7S 详情 详情
Extended Information