Comparative anti-glycation and α-glucosidase inhibition studies of microbial transformed compounds of dydrogesterone.

Anti-glycation and α-glucosidase inhibition activities of microbial transformed compounds of dydrogesterone (1); 20R-hydroxy-9ß,10αa-pregna-4,6-diene-3-one (2), 17ß-hydroxy-9ß,10α-androsta-4,6-diene-3-one (3) and 9ß,10α-androsta-4,6-diene-3,17-dione (4) were evaluated. Compounds 1 and 4 showed potent α-glucosidase inhibitory activities, while 2 and 3 were found to be weak inhibitors, whereas anti-glycation activities of 1-4 were not observed.