1,1-dimethylethyl (1-{[(4R/S)-3-chloro-4-hydroxy-7-oxo-4,5-dihydro-7H-pyrrolo [3,2,1-de]-1,5-naphthyridin-4-yl]methyl}-4-piperidinyl)carbamate (HCID 77503911)|Huagongshe