849928-22-9

4-Oxo-2-spiro(N-Boc-piperidin-4-yl)-benzopyran N-Boc-spiro[2H-1-benzopyran-2,4'-piperidine]4(3H)-one 4-Oxo-2-spiro(N-Boc-piperidine-4-yl)benzopyran - O6086 tert-butyl 4-oxospiro[chromane-2,4'-piperidine]-1'-carboxylate tert-butyl 4-oxospiro[3H-chromene-2,4'-piperidine]-1'-carboxylate tert-butyl 4-oxo-3,4-dihydro-1'H-spiro[chromene-2,4'-piperidine]-1'-carboxylate Spiro[2H-1-benzopyran-2,4'-piperidine]-1'-carboxylic acid, 3,4-dihydro-4-oxo-, 1,1-diMethylethyl ester