[(2S,3S,8S,11S,12S,17S)-3,12-Bis-benzyloxymethyl-8,17-bis-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-11-hydroxymethyl-1,4,7,10,13,16-hexaoxa-cyclooctadec-2-yl]-methanol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  sodium hydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二甲基亚砜                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
(2S,3S,6S,11S,12S,15S)-2,11-Bis-benzyloxymethyl-6,15-bis-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-3,12-bis-(2-methoxy-phenoxymethyl)-1,4,7,10,13,16-hexaoxa-cyclooctadecane