108890-87-5 2H-Furo(3,2-b)naphtho(2,3-d)pyran-2,6,11-trione, 3,3a,5,11b-tetrahydro-8-hydroxy-7-methoxy-5-methyl-, (3aR-(3aalpha,5alpha,11balpha))- Arizonin A1 Arizonin-A1