Process for preparing montelukast or a pharmaceutically acceptable salt thereof, especially its sodium salt, that comprises the condensation of an aldehyde and 7-chloro-2-methylquinoline. Moreover, novel intermediates useful for the synthesis of montelukast are described as well as their preparation.
制备蒙特卢卡斯特或其药学上可接受的盐,特别是其钠盐的过程,包括醛和7-
氯-
2-甲基喹啉的缩合。此外,还描述了用于合成蒙特卢卡斯特的新型中间体以及它们的制备方法。