N-[1(S)-(cyclohexylmethyl)-2(R),3(S)-dihydroxy-5-methylhexyl]-2(R)-(cyclopropylmethyl)-3(S),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 3.0h,
以95%的产率得到(2R,3S,5R)-N-[1(S)-(Cyclohexylmethyl)-2(R), 3(S)-dihydroxy-5-methylhexyl]-2-(cyclopropylmethyl)-3,5-dihydroxy-6-phenylhexanamide