Pachydictyol A epoxide;(3aR,4R)-7β-[(R)-1,5-Dimethyl-4-hexenyl]-3aα,5,6,7,8,8aβ-hexahydro-1-methylspiro[azulene-4(3H),2'-oxiran]-8β-ol;Spiro[azulene-4(3H),2'-oxiran]-8-ol, 7-[(1R)-1,5-dimethyl-4-hexen-1-yl]-3a,5,6,7,8,8a-hexahydro-1-methyl-, (2'R,3aR,7S,8R,8aS)-