2-Butene-1,4-diol,2-[2-[1,2,3,4,4a,7,8,8a-octahydro-4-hydroxy-4a-(hydroxymethyl)-1,2,5-trimethyl-1-naphthalenyl]ethyl]-,[1S-[1a(Z),2b,4b,4ab,8aa]]-