"Pleuromutilin" . "pleuromutilin" . . . "(3aS,4R,5S,6S,8R,9R,9aR,10R)-6-Ethenyl-5-hydroxy-4,6,9,10-tetramethyl-1-oxodecahydro-3a,9-propanocyclopenta[8]annulen-8-yl hydroxyacetate" . . . . . . . . . "Pleuromutilin" . "(+)-pleuromutilin" . . . . "pleuromulin" . . . . . .