【结 构 式】 |
【分子编号】57848 【品名】5-(chloromethyl)-3,4-diphenyl-4,5-dihydro-5-isoxazolol 【CA登记号】 |
【 分 子 式 】C16H14ClNO2 【 分 子 量 】287.7454 【元素组成】C 66.79% H 4.9% Cl 12.32% N 4.87% O 11.12% |
合成路线1
该中间体在本合成路线中的序号:(IV)Treatment of deoxybenzoin (I) with hydroxylamine hydrochloride produces the corresponding oxime (II). Condensation of the dilithium derivative of (II) with methyl chloroacetate (III) generates the dihydroisoxazole (IV). Subsequent chlorosulfonation of (IV), followed by treatment with ammonia, furnishes sulfonamide (V). Then, displacement of the chloro group of (V) with silver nitrate gives rise to the target nitrate ester. Alternatively, chloride (V) is converted to alcohol (VI) by displacement with formic acid, followed by alkaline hydrolysis. Then, reaction of alcohol (VI) with in situ generated acetyl nitrate yields the corresponding nitrate.
【1】 Schroeder, J.D.; et al.; NMI-1093: A nitric oxide-enhanced cyclooxygenase-2 selective inhibitor with cardioprotective potential. 224th ACS Natl Meet (Aug 18 2002, Boston) 2002, Abst MEDI 316. |
【2】 Garvey, D.S.; Tam, S.W.; Letts, L.G.; Schroeder, J.D.; Bandarage, U.K.; Fang, X.; Bandarage, R.R. (NitroMed Inc.); Nitrosated and nitrosylated cyclooxygenase-2 inhibitors, compsns. and methods of use. WO 0145703 . |
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) | 41003 | 1,2-diphenyl-1-ethanone; Deoxybenzoin-2-phenylacetophenone; Dexybenzoin | 451-40-1 | C14H12O | 详情 | 详情 |
(II) | 41004 | 1,2-diphenyl-1-ethanone oxime | C14H13NO | 详情 | 详情 | |
(III) | 10257 | methyl 2-chloroacetate; methyl chloroacetate | 96-34-4 | C3H5ClO2 | 详情 | 详情 |
(IV) | 57848 | 5-(chloromethyl)-3,4-diphenyl-4,5-dihydro-5-isoxazolol | C16H14ClNO2 | 详情 | 详情 | |
(V) | 57849 | 4-[5-(chloromethyl)-3-phenyl-4-isoxazolyl]benzenesulfonamide | C16H13ClN2O3S | 详情 | 详情 | |
(VI) | 57850 | 4-[5-(hydroxymethyl)-3-phenyl-4-isoxazolyl]benzenesulfonamide | C16H14N2O4S | 详情 | 详情 |