(S)-1-(4-ethyl-4,9-dihydroxy-6-oxido-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-10-yl)-N,N-dimethylmethanamine oxide
(S)-1-(4-ethyl-4,9-dihydroxy-6-oxido-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-10-yl)-N,N-dimethylmethanamine oxide