1 9,19-Cyclolanostane Derivatives from the Roots of Actaea pachypoda Zulfiqar Ali, † Shabana I. Khan, † Rahul S. Pawar, † Daneel Ferreira, †, ‡ and Ikhlas A. Khan *, †, ‡ National Center for Natural Products Research and Department of Pharmacognosy, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677 * To whom correspondence should be addressed. Tel: 1-662-915-7821. Fax: 1-662- 915-7989. E-mail: ikhan@olemiss.edu † National Center for Natural Products Research. ‡ Department of Pharmacognosy.