Isolation, structural modification, and HIV inhibition of pentacyclic lupane-type triterpenoids from cassine xylocarpa and maytenus cuzcoina

1. Callies, O.
2. Bedoya, L.M.
3. Beltrán, M.
4. Muñoz, A.
5. Calderón, P.O.
6. Osorio, A.A.
7. Jiménez, I.A.
8. Alcamí, J.
9. Bazzocchi, I.L.