104992-93-0 Cyclotetradeca(b)furan-2(3H)-one, 9-(acetyloxy)-3a,4,5,8,9,12,13,15a-octahydro-6,10,14-trimethyl-3-methylene-, (3aR-(3aR*,6E,9R*,10E,14E,15aS*))- Kericembrenolide B