The present invention relates to a novel crystalline potassium salt of cefdinir - cefdinir potassium tetrahydrate, processes for its preparation, pharmaceutical compositions including cefdinir potassium tetrahydrate, and methods of treating bacterial infections using cefdinir potassium tetrahydrate. In addition, the present invention also relates to a mixture of cefdinir potassium dihydrate and cefdinir potassium tetrahydrate, processes for its preparation, pharmaceutical compositions including the mixture, and methods of treating bacterial infections using mixtures of cefdinir potassium dihydrate and cefdinir potassium tetrahydrate. Further it also relates to processes for preparing pure cefdinir and cefdinir potassium dihydrate from cefdinir potassium tetrahydrate.
本发明涉及一种新颖的
头孢地尼的晶体
钾盐 -
头孢地尼钾四水合物,其制备方法,包括
头孢地尼钾四水合物的制药组合物,以及使用
头孢地尼钾四水合物治疗细菌感染的方法。此外,本发明还涉及
头孢地尼钾二水合物和
头孢地尼钾四水合物的混合物,其制备方法,包括该混合物的制药组合物,以及使用
头孢地尼钾二水合物和
头孢地尼钾四水合物的混合物治疗细菌感染的方法。此外,还涉及从
头孢地尼钾四水合物中制备纯
头孢地尼和
头孢地尼钾二水合物的方法。