The invention discloses a cefotiam hydrochloride monohydrate compound and a preparation method thereof. Each mole of cefotiam hydrochloride contains 1 mole of water, and its X-ray diffraction angle 2Theta has characteristic peaks at 15.02 (+0.2), 30.12 (+0.2), 31.68 (+0.2), 35.21 (+0.2 and 37.99 (+0.2). Using 7-aminocephalosporic acid (7ACA) as starting material, the intermediate was synthesized by condensation of 7-aminocephalosporic acid (7ACA) with 1-(2-(dimethylaminoethyl)-5-(mercaptotetrazole) in the presence of dimethyl carbonate, boron trifluoride and other organic solvents. Acyl chloride was synthesized from 7-aminothiazole acetate hydrochloride with dichloromethane and concentrated hydrochloric acid gas, and cefotian hydrochloride monohydrate was further synthesized. The operation is simple, environmentally friendly, the reactants are easily available, the reaction conditions are mild, and the yield is high. The cefotiam hydrochloride hydrochloride compound of the invention has low moisture absorption, low impurity content, good fluidity and good thermodynamic stability, and has a wider application prospect.
【技术实现步骤摘要】
一种一水盐酸头孢替安化合物及其药物组合物
本专利技术涉及医药化工
,特别是涉及一种一水盐酸头孢替安化合物及其药物组合物。
技术介绍
盐酸头孢替安,即头孢替安二盐酸盐,化学名为(6R-反式)-7-[[(2-氨基-4-噻唑基)乙酰基]氨基]-3-[[[1-[(2-(二甲氨基)乙基]-1H-四唑-5-基]硫代甲基]-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸二盐酸盐,分子式:C18H23N9O4S3·2HCl,分子量:598.56,为临床上应用较广泛的头孢菌素。其结构式为:头孢替安盐酸盐是由日本武田公司研发于1981年首次在日本上市的第二代半合成头孢菌素。对革兰阳性菌的作用与头孢唑林接近,对革兰阴性菌,如嗜血杆菌、大肠埃希菌、克雷伯杆菌、奇异变形杆菌等作用较优,对肠杆菌、枸橼酸杆菌、吲哚阳性变形杆菌等也有抗菌作用。用于治疗敏感菌所致的感染,如肺炎、支气管炎、胆道感染、腹膜炎、尿路感染以及手术和外伤所致的感染和败血症等。头孢替安盐酸盐的合成路线均以7-氨基头孢烷酸(7-ACA)为原料,通过酸碱催化,其3位侧链乙酰氧基与1-(2-二甲氨基乙基) ...
【技术保护点】
1.一种一水盐酸头孢替安化合物,其特征在于,每摩尔盐酸头孢替安含1摩尔水,分子式:C18H23N9O4S3·2HCl·H2O,分子量:616.56,结构式如下:
【技术特征摘要】
1.一种一水盐酸头孢替安化合物,其特征在于,每摩尔盐酸头孢替安含1摩尔水,分子式:C18H23N9O4S3·2HCl·H2O,分子量:616.56,结构式如下:2.一种药物组合物,其特征在于,含有一水盐酸头孢替安化合物,该每摩尔盐酸头孢替安化合物含1摩尔水,分子式:C18H23N9O4S3·2HCl·H2O,分子量:616.56,结构式如下:3....
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