LIGNAN-CONTAINING EXTRACTS OF MANOLIAE FLOS AND USE THEREOF IN THE TREATMENT AND PREVENTION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD)

摘要

The present invention relates to an extract of Magnoliae flos, a fraction oran active fractionobtained by fractionation thereof with an organic solvent, and a compoundseparated therefrom,represented by Formula Ias defined herein, as an active ingredient for preventing and treating chronicobstructivepulmonary disease.