L-4-氰基苯丙氨酸

carbon monoxide

6-(羟基甲基)-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮

(E)-6-styryl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one

6-styryl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one