2H-1,4-Benzoxazine-2,3(4H)-dione, 4-hydroxy-7-methoxy-

2,7-dimethoxy-4-hydroxy-2H-1,4-benzoxazin-3(4H)-one

2,2-di-tert-butyl-7-methoxy-4aH-benzo[e][1,3,4,2]dioxazasilolo[5,4-c]oxireno[2,3-b][1,4]oxazine

ethyl 2-(5-methoxy-2-nitrophenoxy)acetate

isopropyl 2-(5-methoxy-2-nitrophenoxy)-2-(methoxymethoxy)acetate