Synonyms: 7,9a-Methano-9aH-cyclopenta[b]heptalene-4,8,10,11,11a(1H)-pentol,2,3-epoxydodecahydro-1,1,4,8-tetramethyl-, 11-acetate,(2R,3S,3aS,4R,4aR,7R,8R,9aR,10S,11R,11aR)- (8CI); Lyoniatoxin (6CI,7CI);5,7a-Methano-7aH-cyclohept[6,7]azuleno[1,2-b]oxirene,grayanotoxane-5,6,7,10,16-pentol deriv.; Lyoniol A