Structure-activity relationships of bergenin derivatives effect on α-glucosidase inhibition
作者:Yusei Kashima、Hidehiko Yamaki、Takuya Suzuki、Mitsuo Miyazawa
DOI:10.3109/14756366.2012.719503
日期:2013.12.1
The alpha-glucosidase inhibitory activities of bergenin derivatives were evaluated. Bergenin derivatives were synthesized from bergenin which is a characteristic compound of B. ligulata. A new bergenin derivative, 11-O-(3',4'-dimethoxybenzoyl)-bergenin showed the highest potent inhibitory activity among those of bergenin derivatives. The presence of substituents at 3',4'-position in bergenin derivatives altered the alpha-glucosidase inhibitory activity. 11-O-(3', 4'-dimethoxybenzoyl)-bergenin was noncompetitive inhibitor for alpha-glucosidase. The present study reveals that bergenin derivatives could be classified as a new group of alpha-glucosidase inhibitors.