Abstract
In this review, the natural source, structure, biological activities and the synthesis of labdanes diterpenes with highly functionalized B rings, described to date are shown. The structures for these compounds have been classified taking into account the number of oxygenated positions of the B ring. In this manner the classification has 7 groups of deoxygenated labdanes, 6 of trioxygenated and one group of the tetraoxygenated ones.
Keywords: Bioactivities, diterpenes, forskolin, labdanes, synthesis, terpenes, functionalized B-rings, adenylate cyclase, nitric oxide, erigerol