(S)-4-ethyl-4,9-dihydroxy-10-((methylamino)methyl)-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione; (4S)-4-Ethyl-4,9-dihydroxy-10-[(methylamino)methyl]-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione
(S)-4-ethyl-4,9-dihydroxy-10-((methylamino)methyl)-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione; (4S)-4-Ethyl-4,9-dihydroxy-10-[(methylamino)methyl]-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione