The (+)-(1R,2S) and (−)-(1S,2R) stereoisomers of 2-(aminomethyl)cyclobutane-1-carboxylic acid have been prepared using a short and efficient strategy, which employs the photochemical [2+2] cycloaddition reaction between ethylene and an unsaturated γ-lactam as the key step.
使用短而有效的策略制备了2-(
氨基甲基)
环丁烷-1-
羧酸的(+)-(1 R,2 S)和(-)-(1 S,2 R)立体异构体,
乙烯与不饱和γ-内酰胺之间的光
化学[2 + 2]环加成反应是关键步骤。