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Ecdysteroid glycosides from Sida rhombifolia L
Atul N Jadhav1, Rahul S Pawar, Bharathi Avula
1National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, USA.
Abstract:
Seven ecdysteroids, including the three new compounds 1-3, were isolated from Sida rhombifolia L. Their structures and configurations were determined by extensive spectroscopic techniques in combination with chemical derivatization. The four known compounds--ecdysone (4), 20-hydroxyecdysone (5), 2-deoxy-20-hydroxyecdysone-3-O-beta-D-glucopyranoside (6), and 20-hydroxyecdysone-3-O-beta-D-glucopyranoside (7)--are reported for the first time from this plant.