methyl (3S,3aS,3a1R,5S,11bS)-3a-((tert-butyldimethylsilyl)oxy)-10-methoxy-3-((2-methoxyphenyl)thio)-1,7-dioxo-9-((triisopropylsilyl)oxy)-2,3,3a,3a1,4,5,7,11b-octahydro-1H-pyrrolo[3,2,1-de]phenanthridine-5-carboxylate

(1R,3S,3aS,3a1R,5S,11bS)-1-acetoxy-3a-((tert-butyldimethylsilyl)oxy)-10-methoxy-3-((2-methoxyphenyl)sulfonyl)-7-oxo-9-((triisopropylsilyl)oxy)-2,3,3a,3a1,4,5,7,11b-octahydro-1H-pyrrolo[3,2,1-de]phenanthridine-5-carboxylic acid