1023758-14-6

(S)-9-[(tert-Butyldimethylsilyl)oxy]-4,11-diethyl-4-hydroxy-1H-pyrano[3’,4’:6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione (S)-9-[(tert-Butyldimethylsilyl)oxy]-4,11-diethyl-4-hydroxy-1H-pyrano[3’,4’:6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione (4S)-9-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-4,11-diethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione (S)-9-((tert-Butyldimethylsilyl)oxy)-4,11-diethyl-4-hydroxy-1,12-dihydro-14H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H)-dione 1H-Pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione, 9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4,11-diethyl-4-hydroxy-, (4S)-