3-[2-[[27-[2-(3-Formylphenoxy)ethoxy]-26,28-dihydroxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3(28),4,6,9(27),10,12,15,17,19(26),21,23-dodecaenyl]oxy]ethoxy]benzaldehyde                                                                                                                                                              在
                                                                                                                                                                                 
四氯化钛   、                                                                                                  
锌                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 27.0h,
                                                                                                                以37%的产率得到(12Z)-3,6,19,22-tetraoxaoctacyclo[22.15.7.17,11.114,18.130,34.141,45.02,36.023,28]pentaconta-1(39),2(36),7,9,11(50),12,14(49),15,17,23(28),24,26,30,32,34(48),37,41(47),42,44-nonadecaene-47,48-diol