N-[1(S)-(cyclohexylmethyl)-2(R),3(S)-dihydroxy-5-methylhexyl]-2(R)-(cyclopropylmethyl)-3(R),5(R)-dihydroxy-3,5-O-isopropylidene-6-phenylhexanamide                                                                                                                                                              在
                                                                                                                                                                                 Amberlite IR-120 (H
+)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 5.0h,
                                                                                                                以84%的产率得到N-[1(S)-(cyclohexylmethyl)-2(R),3(S)-dihydroxy-5-methylhexyl]-2(R)-(cyclopropylmethyl)-3(R),5(R)-dihydroxy-6-phenylhexanamide