3,4-dihydro-2-(iso-propyl)-3-oxo-2H-1,4-benzoxazine

2-nitro-10H-dibenzo[b,f]1,4-oxazepin-11-one

3-nitrobenzo[b,f][1,4]oxazepin-11(10H)-one

1-benzoyloxy-2-(2-phenyl-acetylamino)-benzene

3-[p-(2-benzoxazolyl)phenylimino]-2-indolinone