2-chloro-4-hydroxycinnamic acid 、 2-((S)-1-Amino-ethyl)-5-methyl-thieno[2,3-d][1,3]oxazin-4-one; compound with trifluoro-acetic acid 在
乙胺嗪 、
N,N-二异丙基乙胺 作用下,
生成
(E)-3-(2-Chloro-4-hydroxy-phenyl)-N-[(S)-1-(5-methyl-4-oxo-4H-thieno[2,3-d][1,3]oxazin-2-yl)-ethyl]-acrylamide