Ecdysteroids from the Roots of Serratula chinensis

Abstract:

Seven ecdysteroids,20-hydroxyecdysone(1),podecdysone C(2),3-O-acetyl-20-hydroxyecdysone(3),20-hydroxyecdysone-20,22-butylidene acetal(4),shidasterone(5),atrotosterone C(6)and carthamosterone(7),were isolated from the roots of Serratula chinensis S.Moore.All compounds except compound1were isolated from this plant for the first time,and compound4was found to be a new ecdys-teroid.