Abstract
Three new limonoids, azadiraindins E–G (1–3, respectively), together with six known analogs, were isolated from the fresh fruit coats of Azadirachta indica. The structures of these compounds were elucidated by spectroscopic methods (IR, MS, HR-ESI-MS, 1D NMR, and 2D NMR).
Acknowledgments
This project was financially supported by the National Special Program of Basic Research (SB2007FY400), National Science & Technology Underpin Program (2007BAD32B01-03), the Knowledge Innovation Program of CAS (Grant No. KSCX2-YW-G-038, Qian-2011), as well as Foundation of State Key Laboratory of Phytochemistry and Plant Resources in West China (P2010-ZZ14).