2H-1-Benzopyran-2-one,4-[[(2E)-5-[(1R)-2,2-dimethyl-6-methylene-3-oxocyclohexyl]-3-methyl-2-pentenyl]oxy]-5-methyl-(9CI); 2H-1-Benzopyran-2-one,4-[[5-(2,2-dimethyl-6-methylene-3-oxocyclohexyl)-3-methyl-2-pentenyl]oxy]-5-methyl-,[R-(E)]-; Nassauvirevolutin B