66781-14-4 9-amino-8-(cyclopropylamino)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,11-trioxo-1,2-dihydro-6H-2,7-(epoxypentadeca[1,11,13]trienoazeno)naphtho[2,1-b]furan-21-yl acetate 82799-13-1 (3aR,4S,9R,9aS)-3a,9a-dimethyl-3a,4,9,9a-tetrahydro-4,9-epoxynaphtho[2,3-c]furan-1,3-dione