100157-22-0 2H-Xantheno(2',3':6,7)(1,3)benzodioxino(4,5-fg)isoquinoline-1,15-dione, 7a,8,11,12,13,14-hedahydro-11,14,16,17-tetrahydroxy-9-methoxy-2,3-dimethyl-, (7aalpha,11beta,14alpha)-(+)- LL D42067alpha Simaomicin alpha