Selective Defluorination Approach to <i>N-</i>Cbz-3,3-difluoro-2-difluoromethylenepyrrolidine and Its Application to 3,3-Difluoroproline Dipeptide SynthesisYong Guo, Kenji Uneyama, Kana Fujiwara et al.|The Journal of Organic Chemistry|2007Cited by 22