Synthetic studies of neoclerodane diterpenoids from Salvia splendens and evaluation of Opioid Receptor affinity.
Tetrahedron December 20, 2008 Gianfranco Fontana, Giuseppe Savona, Benjamín Rodríguez et al. 32 citations
Salvinorin A, a compound from the hallucinogenic mint Salvia divinorum, is the only known non-nitrogenous and specific kappa-opioid agonist. Several related compounds from Salvia splendens and a series of semisynthetic derivatives, including some with a pyrazoline structural moiety, were tested for their ability to bind to human mu, delta, and kappa opioid receptors. None of these compounds showed high-affinity binding to these receptors. However, one compound (10) showed modest affinity for kappa receptors, suggesting that other naturally occurring neoclerodanes from different Salvia species may have opioid affinity.