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【结 构 式】

【分子编号】44074

【品名】2-(2-chlorophenyl)-3,4,4-trimethyl-4,5-dihydro-1,3-oxazol-3-ium iodide

【CA登记号】

【 分 子 式 】C12H15ClINO

【 分 子 量 】351.61441

【元素组成】C 40.99% H 4.3% Cl 10.08% I 36.09% N 3.98% O 4.55%

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:(VI)

The reaction of [benzene-U-13C]benzoic acid (I) with SOCl2 gives the corresponding acyl chloride (II), which is cyclized with the ethanolamine (III) to yield the oxazoline (IV).The chlorination of (IV) with sec-BuLi and hexachloroethane in toluene affords the 2-chlorophenyl derivative (V), which is methylated with MeI to provide the oxazolinium salt (VI). The reduction of (VI) with NaBH4 in ethanol yields the oxazolidine (VII), which is hydrolyzed with HCl to afford the labeled 2-chlorobenzaldehyde (VIII). The condensation of aldehyde (VIII) with the tetrahydrothienopyridine (IX) by means of acetone cyanohydrine in hot toluene affords the substituted acetonitrile (X), which is hydrolyzed to the substituted acetamide (XI) with HCl in methanol. Finally, this compound is treated with H2SO4 in refluxing methanol to afford the target labeled methyl ester as a racemic mixture.

1 Kashimura, S.; Kuwata, F.; Ishige, O.; Uyama, H.; Shono, T.; Yamaguchi, Y.; Formation of a novel acyl anion equivalent by the electroreduction of oxazolinium salts. Chem Lett 1987, 1511.
2 Burgos, A.; Simpson, I.; Herbert, J.M.; Ortho-metalation/chlorination of benzoic acid derivatives: Preparation of [benzene-U-C-13]-rac-clopidogrel ([benzene-U-C-13]-rac-SR25990C). J Label Compd Radiopharm 2000, 43, 9, 891.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
63476 methyl 2-(2-chlorophenyl)-2-[6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]acetate C16H16ClNO2S 详情 详情
63477 methyl 2-(2-chlorophenyl)-2-[6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]acetate C16H16ClNO2S 详情 详情
(I) 10202 Benzoic acid 65-85-0 C7H6O2 详情 详情
(I) 44623   C7H6O2 详情 详情
(II) 10463 Benzoyl chloride 98-88-4 C7H5ClO 详情 详情
(II) 45137   C7H5ClO 详情 详情
(III) 21513 2-amino-2-methyl-1-propanol;Karl Fischer;2-Amino-2-methyl-propan-1-ol;2-amino-2-methyl-1-propanol 124-68-5 C4H11NO 详情 详情
(IV) 44072 4,4-dimethyl-2-phenyl-4,5-dihydro-1,3-oxazole 19312-06-2 C11H13NO 详情 详情
(IV) 45138   C11H13NO 详情 详情
(V) 44073 2-(2-chlorophenyl)-4,4-dimethyl-4,5-dihydro-1,3-oxazole C11H12ClNO 详情 详情
(V) 45139   C11H12ClNO 详情 详情
(VI) 44074 2-(2-chlorophenyl)-3,4,4-trimethyl-4,5-dihydro-1,3-oxazol-3-ium iodide C12H15ClINO 详情 详情
(VI) 45140   C12H15ClINO 详情 详情
(VII) 44075 2-(2-chlorophenyl)-3,4,4-trimethyl-1,3-oxazolidine C12H16ClNO 详情 详情
(VII) 45141   C12H16ClNO 详情 详情
(VIII) 24114 2-chlorobenzaldehyde 89-98-5 C7H5ClO 详情 详情
(VIII) 45142   C7H5ClO 详情 详情
(IX) 34011 4,5,6,7-tetrahydrothieno[3,2-c]pyridine 54903-50-3 C7H9NS 详情 详情
(X) 44076 2-(2-chlorophenyl)-2-[6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]acetonitrile C15H13ClN2S 详情 详情
(X) 45143   C15H13ClN2S 详情 详情
(XI) 44077 2-(2-chlorophenyl)-2-[6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl]acetamide C15H15ClN2OS 详情 详情
(XI) 45144   C15H15ClN2OS 详情 详情
Extended Information