leucothol A

(2S,4aβ,10aα,11aα)-2,3,4a,5,6,7,8,9,10,10a,11,11a-Dodecahydro-2α,7β-dihydroxy-3,3,7-trimethyl-11-methylene-5aβ,8β-methano-5aH-cyclohepta[b]naphthalen-4(1H)-one