Unnatural natural products from the transannular cyclization of lathyrane diterpenes.

ABSTRACT

The potential of macrocyclic diterpenoids to afford natural product-like polycyclic compounds was demonstrated by the conversion of two lathyrane Euphorbia factors into a series of densely functionalized diterpenoids of unnatural skeletal type. Apparently, Nature is far from having fully exploited the built-in reactivity of these compounds to generate chemical diversity.