(4S)-4α,11-Diethyl-4β-hydroxy-9-[[4-phenylpiperazin-1-yl]carbonyloxy]-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione | (4S)-4α,11-Diethyl-4β-hydroxy-9-[[4-phenylpiperazin-1-yl]carbonyloxy]-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione | |