19891-53-3 24338-53-2 3H,8H-Furo(2',3',4':4,5)oxireno(7,8)naphtho(2,1-c)pyran-3,8-dione, 6-ethyl-1a.2.2a.4a.4b.5.9b.9c-octahydro-2-hydroxy-2,9-dimethyl-, (1aR,2R,2aR,4aR,4bR,9bS,9cS)- 3H,8H-Furo(2',3',4':4,5)oxireno(7,8)naphtho(2,1-c)pyran-3,8-dione, 6-ethyl-1aalpha,2,2a,4abeta,4bbeta,5,9b,9calpha-octahydro-2alpha-hydroxy-2abeta,9balpha-dimethyl-, ( )- Nagilactone D Podolactone B, 7,8-deepoxy-8,14-didehydro-15-de(hydroxymethyl)-15-deoxy-, (1alpha,2alpha)-