Phytoecdysones from Parana discifera

From the aerial parts of Parana discifera, 10 phytoecdysones, β- ecdysterone (1) and its 2 -acetate (2) , 3 - acetate (3), 25 - acetate (4) ,2,3- acetonide (5) , 20, 22 - acetonide (6) , and 2 -deoxyecdysterone (7) and its 20, 22 - acetonide (8), 3-O-β-D- glucopyranoside (9) and posterone (10) were isolated. They have no anti - inflammatory, analgesic, sedative, anti - convulsant and anti -cerebra- hypoxic activities in animal testing with Kunming mice.