新型螺杂环化合物的原子经济性,化学,区域和立体选择性合成与晶体结构，金燚君，张亚利，The 1,3-dipolar cycloaddition of azomethine ylides derived from acenaphthenequinone and α-amino acid(sarcosine) to a series of 2,5-bis(fluorobenzylidene)cyclopentanones afforded n