Two new abietane diterpenoids from the leaves of Rabdosia serra

Abstract

Phytochemical investigation on the leaves of Rabdosia serra led to the isolation of two new abietane diterpenoids, raserranes A (1) and B (2), and four known phenylpropanoids (3–6). Their structures were determined by spectroscopic data. Compound 1 represented the rare examples of abietane diterpenoids featuring a 16-methoxycarbonyl group.

Graphical Abstract

Keywords:

• Labiatae
• Rabdosia serra
• abietane diterpenoids
• phenylpropanoids

Acknowledgments

We cordially thank Mrs. Ya-Qi Tang at School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China, for her help with the isolation.

Disclosure statement

No potential conflict of interest was reported by the authors.