2-((benzyloxy)methyl)-2-methylcyclopentane-1,3-dione                                                                                                                                                              在
                                                                                                                                                                                 10,16-bis[4-(4-tert-butyl-2,6-dimethylphenyl)phenyl]-N,N-dimethyl-12,14-dioxa-13-phosphapentacyclo[13.8.0.02,11.03,8.018,23]tricosa-1(15),2(11),3,5,7,9,16,18,20,22-decaen-13-amine   、                                                                                                  copper(II) bis(trifluoromethanesulfonate)   、                                                                                                  
copper(ll) bromide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
乙醚   、                                                                                         
正己烷                                                                                  为溶剂,
                                                                                                                                                    反应 50.5h,
                                                                                                                生成                                                 
(3S,4R,5S)-5-(benzyloxy)methyl-4-hydroxy-3,4,5-trimethylcyclopent-1-en-1-yl trifluoromethanesulfonate   、                                                                                             
(3S,4S,5S)-5-(benzyloxy)methyl-4-hydroxy-3,4,5-trimethylcyclopent-1-en-1-yl trifluoromethanesulfonate