The present invention relates to the optical isomers of cloperastine, a compound of formula:
Because of the presence of the asymmetric carbon atom marked with the asterisk, the compound (I) exists in its dextrorotatory and levorotatory isomer forms.
The invention provides a process for the optical resolution of raceme DL-cloperastine and pharmaceutical compositions containing L-cloperastine.
本发明涉及克洛佩拉斯汀的光学异构体,
化学式为:由于存在带有星号标记的不对称碳原子,化合物(I)以其右旋和左旋异构体形式存在。该发明提供了一种用于对混合物DL-克洛佩拉斯汀进行光学分辨的方法,以及含有L-克洛佩拉斯汀的药物组合物。