<unk>  is a plant secondary metabolite used as an anti-cancer drug that damages DNA, leading to the destruction of the cell.
It comes from<unk> ptotheca acuminata, a deciduous tree found in southern China. Stem woods of Nothopodytes foetida (previously known as Mappia foetida) found in the western ghats of India are an even better source of<unk> .(2)[citation needed] A close analogue, 9-methoxycamptothecin, is also present in the same source.
Camptothecin
Mitomycin 
Vinblastine
Decitabine
Pirarubicin
Satraplatin
Zorubicin
Daunorubicin