156979-68-9 6,10-Methano-2H,5H-furo[4,3,2-kl][3]benzoxocin-2-one,8-(3-furanyl)-4,5a,6,7,8,10,10a,10b-octahydro-6,10b,11-trimethyl-, [5aR-(5aa,6b,8a,10b,10ab,10bb,11R*)]- 156979-70-3 2H-Naphtho[1,8-bc]furan-2-one,4,5,5a,6,7,8,8a,8b-octahydro-8-hydroxy-6,7,8b-trimethyl-6-[2-(2-oxo-3(2H)-furanylidene)ethyl]-,[5aR-(5aa,6a,7a,8a,8ab,8bb)]-