3-溴丙烯 、 (6R,1'R)-N-(1'-methylphenylmethyl)-3-(4-methoxyphenyl)-6-phenyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以77%的产率得到(3S,6R,1'R)-N-(1'-methylphenylmethyl)-3-(4-methoxyphenyl)-3-(propen-2-yl)-6-phenyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one