diphenylmethyl (S)-3-[(2S,3R,4R,5S)-2,3,4,6-tetrahydroxy-5-(L-leucyl)aminohexanoyl]amino-3-phenylpropionate   、                                                                                      
盐酸                                                                                                                                                              在
                                                                                                                                                                                 
methanol diethyl ether                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以to afford the title compound (180 mg)的产率得到N-[(2S,3R,4R,5S)-5-(L-leucyl)amino-2,3,4,6-tetrahydroxyhexanoyl]-β-D-phenylalanine benzhydryl ester hydrochloride