Lup‐1,20(29)‐dien‐3‐one, a triterpenoid from Agyneia bacciformis A. Juss

The crystal structure of glochidone [or lup-1,20(29)-dien-3-one], C30H46O, from the plant Agyneia bacciformis A. Juss has been determined. This natural product has anti-inflammatory activity. The rings A/B, B/C, C/D and D/E are trans fused. The mol­ecules in the crystal structure are stabilized by C—H⋯O short contacts and van der Waals forces.