(1S)-6-hydroxy-5-(2-oxo-propylidene)-1-((1S,2S)-1,2,3-trihydroxy-2-methyl-propyl)-2-oxa-7,9-diaza-bicyclo[4.2.2]decane-8,10-dione                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (1
S)-6-hydroxy-5-((1Ξ,2Ξ)-2-hydroxy-propylidene)-1-((1
S,2
S)-1,2,3-trihydroxy-2-methyl-propyl)-2-oxa-7,9-diaza-bicyclo[4.2.2]decane-8,10-dione