(S)-((1R)-3,3-dimethyl-7-oxo-2-thia-5-aza-bicyclo[2.2.1]hept-6exo-yl)-(2-phenyl-acetylamino)-acetic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (
S)-((1
R)-7ξ-hydroxy-3,3-dimethyl-2-thia-5-aza-bicyclo[2.2.1]hept-6
exo-yl)-(2-phenyl-acetylamino)-acetic acid methyl ester