A synthetic approach to the pseudopterosins using cascade technology

Article abstract of DOI:10.1016/S0040-4039(00)73163-7

A rapid synthetic entry towards the pseudopterosins, a class of diterpenes which display potent anti-inflammatory and analgesic properties, is described. The key feature of this approach is the use of a sequential intramolecular, Lewis acid mediated Friedel-Crafts alkylation - Friedel-Crafts acylation sequence, viz 14 to 15, to establish the tricyclic carbon framework.