(S)-2-((4aR,6R,7R,8R,8aS)-6-Benzyloxy-2,2-dimethyl-7-octadecanoylamino-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-propionic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 
氢氧化钾   、                                                                                                  
N-羟基丁二酰亚胺   、                                                                                                  
N,N'-二环己基碳二亚胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (R)-4-{(S)-2-[(S)-2-((4aR,6S,7R,8R,8aS)-6-Benzyloxy-2,2-dimethyl-7-octadecanoylamino-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-propionylamino]-propionylamino}-4-carbamoyl-butyric acid benzyl ester