tert-Butyl 7-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate 1g

tert-Butyl 7-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate 1g