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【结 构 式】

【分子编号】64917

【品名】2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propenyl methanesulfonate

【CA登记号】

【 分 子 式 】C22H30O4SSi

【 分 子 量 】418.6293

【元素组成】C 63.12% H 7.22% O 15.29% S 7.66% Si 6.71%

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:(XVII)

Synthesis of the 3-pyrroline intermediate (XXVI): The reaction of 4-hydroxy-2-methylenebutyric acid methyl ester (XIV) with Tbdps-Cl and imidazole in DMF gives the silyl ether (XV), which is reduced with DIBAL in dichloromethane to yield the butanol derivative (XVI). The reaction of (XVI) with MsCl and TEA affords the corresponding mesylate (XVII), which is condensed with allylamine (XVIII) to provide the secondary amine (XIX). The protection of the NH group of (XIX) by reaction with Boc2O and TEA gives the carbamate (XX), which is submitted to a ring closing metathesis reaction using a Grubbs Ru catalyst to yield the 3-pyrroline derivative (XXI). The cleavage of the silyl ether group of (XXI) by means of TBAF in THF affords the pyrroline ethanol derivative (XXII), which is treated with PPh3, DEAD and (PhO)2P(O)N3 in THF to provide the azido derivative (XXIII). The deprotection of the NH group of (XXIII) by means of TFA in dichloromethane gives the 3-(2-azidoethyl)-3-pyrroline (XXIV), which is treated with Goodman's reagent to yield the protected amidino derivative (XXV). Finally, the azido group of (XXV) is reduced by means of PPh3, water and AcOH to afford the desired 3-pyrroline-1-carboxamidine (XXVI).

1 Hanessian, S.; Margarita, R.; Hall, A.; Johnstone, S.; Tremblay, M.; Parlanti, L.; Total synthesis and structural confirmation of the marine natural product Dysinosin A: A novel inhibitor of thrombin and Factor VIIa. J Am Chem Soc 2002, 124, 45, 13342.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XIV) 64914 methyl 2-(2-hydroxyethyl)-2-propenoate C6H10O3 详情 详情
(XV) 64915 methyl 2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propenoate C22H28O3Si 详情 详情
(XVI) 64916 2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propen-1-ol C21H28O2Si 详情 详情
(XVII) 64917 2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propenyl methanesulfonate C22H30O4SSi 详情 详情
(XVIII) 13672 Allylamine; 2-Propen-1-amine 107-11-9 C3H7N 详情 详情
(XIX) 64918 2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-N-(2-propenyl)-2-propen-1-amine; N-[2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propenyl]-N-(2-propenyl)amine C24H33NOSi 详情 详情
(XX) 64919 1,1-dimethylethyl 2-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2-propenyl(2-propenyl)carbamate C29H41NO3Si 详情 详情
(XXI) 64920 1,1-dimethylethyl 3-(2-{[(1,1-dimethylethyl)(diphenyl)silyl]oxy}ethyl)-2,5-dihydro-1H-pyrrole-1-carboxylate C27H37NO3Si 详情 详情
(XXII) 64921 1,1-dimethylethyl 3-(2-hydroxyethyl)-2,5-dihydro-1H-pyrrole-1-carboxylate C11H19NO3 详情 详情
(XXIII) 64922 1,1-dimethylethyl 3-(2-azidoethyl)-2,5-dihydro-1H-pyrrole-1-carboxylate C11H18N4O2 详情 详情
(XXIV) 64923 2-(2,5-dihydro-1H-pyrrol-3-yl)ethyl azide; 3-(2-azidoethyl)-2,5-dihydro-1H-pyrrole C6H10N4 详情 详情
(XXV) 64924   C17H28N6O4 详情 详情
(XXVI) 64925   C17H30N4O4 详情 详情
Extended Information