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【结 构 式】 
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【分子编号】12511 【品名】3-(1H-1,2,3,4-Tetraazol-5-yl)aniline; 3-(1H-1,2,3,4-Tetraazol-5-yl)phenylamine 【CA登记号】 |
【 分 子 式 】C7H7N5 【 分 子 量 】161.16628 【元素组成】C 52.17% H 4.38% N 43.45% |
与该中间体有关的原料药合成路线共 2 条
合成路线1
该中间体在本合成路线中的序号：(I)By condensation of 3-(5-tetrazolyl)aniline (I) with oxalic acid monochloride butyl ester (II) in cool pyridine.
| 【1】 Goto, H. (Wakamoto Pharmaceutical Co., Ltd.); Aminophenyltetrazole derivative and salt thereof. JP 1982011975 . |
| 【2】 Chu, S.S.; Tazanolast. Drugs Fut 1988, 13, 11, 968. |
合成路线2
该中间体在本合成路线中的序号：(I)Acitazanolast can be obtained by two related procedures: 1) By condensation of 3-(1H-tetrazol-5-yl)aniline (I) with oxalyl chloride (II) in dimethoxyethane. 2) By condensation of the aniline (I) with ethyl oxalyl chloride (III) by means of triethylamine in DMF to the corresponding ethyl ester (IV), which is then hydrolyzed with base (KOH or NaOH) in ethanol.
| 【1】 Rabasseda, X.; Mealy, N.; Castaner, J.; Acitazanolast. Drugs Fut 1995, 20, 9, 873. |
| 【2】 Sawaki, S.; Ootake, Y.; Hashimoto, T.; Abe, T.; Horio, Y. (Wakamoto Pharmaceutical Co., Ltd.); 3-(1H-Tetrazol-5-yl)oxanilic acid and salts thereof, method for preparing the same and pharmacological compsns. Containing the cpd. EP 0256507; JP 1988044570; US 4795756 . |
| 【3】 Sawaki, M.; Ohtake, Y.; Hashimoto, M.; Abe, T.; Horio, Y. (Wakamoto Pharmaceutical Co., Ltd.); Antiallergic agents. JP 1989029312 . |
| 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) | 12511 | 3-(1H-1,2,3,4-Tetraazol-5-yl)aniline; 3-(1H-1,2,3,4-Tetraazol-5-yl)phenylamine | C7H7N5 | 详情 | 详情 | |
| (III) | 11043 | Ethyl 2-chloro-2-oxoacetate; Ethyl oxalyl chloride | 4755-77-5 | C4H5ClO3 | 详情 | 详情 |
| (IV) | 12513 | ethyl 2-oxo-2-[3-(1H-1,2,3,4-tetraazol-5-yl)anilino]acetate | C11H11N5O3 | 详情 | 详情 |
Extended Information