| 英文同义词: | tert-butyl 4-oxospiro[chroman-2,3'-pyrrolidine]-1'-carboxylate;tert-butyl 4-oxo-3,4-dihydro-1'H-spiro[chromene-2,3'-pyrrolidine]-1'-carboxylate;tert-Butyl 4-Oxo-3,4-dihydrospiro[1-benzopyran-2,3'-pyrrolidine]-1'-carboxylate;Spiro[2H-1-benzopyran-2,3'-pyrrolidine]-1'-carboxylic acid, 3,4-dihydro-4-oxo-, 1,1-dimethylethyl ester;Tert-butyl 4-oxospiro[chromane-2,3'-pyrrolidine]-1'-carboxylate;1,1-Dimethylethyl3,4-dihydro-4-oxospiro[2H-1-benzopyran-2,3′-pyrrolidine]-1′-carboxylate |