37905-08-1 Bisoxireno(1,10a:3,4)phenanthro(3,2-b)furan-9(7aH)-one, 1,2,3,4,4a,5,6,11a,11b,11c-decahydro-4,4,8,11c-tetramethyl-, (4aR-(4aalpha,6aS*,7abeta,10aR*,11abeta,11balpha,11cbeta))- Jolkinolide B