tert-Butyl (2-(7-bromo-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)ethyl)carbamate 1g

tert-Butyl (2-(7-bromo-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)ethyl)carbamate 1g