【结 构 式】 |
【分子编号】26720 【品名】2-azido-1-phenyl-1-ethanone 【CA登记号】 |
【 分 子 式 】C8H7N3O 【 分 子 量 】161.1632 【元素组成】C 59.62% H 4.38% N 26.07% O 9.93% |
合成路线1
该中间体在本合成路线中的序号:(XI)The intermediate sulfonyl chloride (VIII) has been obtained as follows: The reaction of phenacyl bromide (X) with sodium azide in hot DMF gives the azide (XI), which is condensed with 3-cyclopentylpropionyl chloride (XII) by means of LDA yielding the enol ester (XIII). The cyclization of (XIII) by means of triethyl phosphite in refluxing hexane affords 2-(2-cyclopentylethyl)-5-phenyloxazole (XIV), which is finally sulfonated with chlorosulfonic acid to afford the target sulfonyl chloride (VIII).
【1】 Ok, H.O.; Candelore, M.R.; Reigle, L.B.; et al.; Substituted oxazole benzenesulfonamides as potent human beta3 adrenergic receptor agonists. 217th ACS Natl Meet (March 21 1999, Anaheim) 1999, Abst MEDI 114. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VIII) | 26718 | 4-[2-(2-cyclopentylethyl)-1,3-oxazol-5-yl]benzenesulfonyl chloride | C16H18ClNO3S | 详情 | 详情 | |
(X) | 10315 | 2-Bromo-1-phenyl-ethanone; 2-Bromo-1-phenyl-1-ethanone | 70-11-1 | C8H7BrO | 详情 | 详情 |
(XI) | 26720 | 2-azido-1-phenyl-1-ethanone | C8H7N3O | 详情 | 详情 | |
(XII) | 26721 | 3-cyclopentylpropanoyl chloride | 104-97-2 | C8H13ClO | 详情 | 详情 |
(XIII) | 26722 | (Z)-2-azido-1-phenylethenyl 3-cyclopentylpropanoate | C16H19N3O2 | 详情 | 详情 | |
(XIV) | 26723 | 2-(2-cyclopentylethyl)-5-phenyl-1,3-oxazole | C16H19NO | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(IV)Treatment of 6-aminoisoquinoline (I) with 1,1'-thiocarbonyldi-2(1H)-pyridone (II) provides the isothiocyanate (III). Subsequent condensation of (III) with 2-azidoacetophenone (IV) in the presence of triphenylphosphine affords the title oxazole derivative.
【1】 Chen, P.; Norris, D.; Haslow, K.D.; Dhar, T.G.M.; Pitts, W.J.; Watterson, S.H.; Cheney, D.L.; Bassolino, D.A.; Fleener, C.A.; Rouleau, K.A.; Hollenbaugh, D.L.; Townsend, R.M.; Barrish, J.C.; Iwanowicz, E.J.; Identification of novel and potent isoquinoline aminooxazole-based IMPDH inhibitors. Bioorg Med Chem Lett 2003, 13, 7, 1345. |
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) | 64245 | 6-isoquinolinamine; 6-isoquinolinylamine | C9H8N2 | 详情 | 详情 | |
(II) | 61696 | 1-{[2-oxo-1(2H)-pyridinyl]carbothioyl}-2(1H)-pyridinone | C11H8N2O2S | 详情 | 详情 | |
(III) | 64246 | 6-isothiocyanatoisoquinoline; 6-isoquinolinyl isothiocyanate | C10H6N2S | 详情 | 详情 | |
(IV) | 26720 | 2-azido-1-phenyl-1-ethanone | C8H7N3O | 详情 | 详情 |