(4S,5R)-3-(furan-2-carbonyl)-5-methyl-N-(8-oxo-5,6,7,8-tetrahydronaphthalen-1-yl)oxazolidine-4-carboxamide                                                                                                                                                                                              以
                                                                                         
六甲基磷酰三胺   、                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                                                        以13%的产率得到(1R,2S,5S,10R,11S)-syn-1-hydroxy-10-methyl-9,23-dioxa-7,13-diazahexacyclo[12.7.1.1.0
5,13.0
7,11.0
18,22]tricosa-3,14,16,18(22)-tetraene-6,12-dione