103106-19-0 7,18a-Methano-6,10-metheno-5H-cyclohexadeca(b)pyran-5,19-dione, 3,4a,13-trichloro-2,3,4,4a,11,12,13,14,15,18-decahydro-9,20-dihydroxy-2,2,16-trimethyl-12-methylene- Napyradiomycin C2