Abstract
Cochinchinones M–U (1–9), together with 12 known compounds (10–21), were isolated from the stems of Cratoxylum cochinchinense (Lour.) Blume. Their structures were determined on the basis of extensive spectroscopic data analyses. In addition, their retinoid X receptor-α transcriptional activities were evaluated using an in vitro assay.
Acknowledgments
We thank Professor Rong-tao Li (Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences) for collecting the plant material. We are grateful to Dr Tao Shi and Dr Jiefeng Tian for measuring the HR-ESI-MS and NMR data.
Disclosure statement
No potential conflict of interest was reported by the authors.
Notes
Dedicated to Professor Xin-Sheng Yao on the occasion of his 80th birthday.
1. These authors contributed equally to this work.