1439899-53-2

tert-Butyl 6'-fluoro-2'-oxo-2',4'-dihydro-1'H-spiro[piperidine-4,3'-quinoline]-1 tert-Butyl 6-fluoro-2-oxo-2,4-dihydro-1H-spiro[piperidine-4,3-quinoline]-1-carboxylate tert-Butyl 6'-fluoro-2'-oxo-2'，4'-dihydro-1'H-spiro[piperidine-4，3'-quinoline]-1-carboxylate Spiro[piperidine-4,3'(2'H)-quinoline]-1-carboxylic acid, 6'-fluoro-1',4'-dihydro-2'-oxo-, 1,1-dimethylethyl ester