在
                                                                                                                                                                                 
三甲基溴硅烷   、                                                                                                  
三乙胺   、                                                                                                  
吡啶   、                                                                                                  pyridine hydrofluoride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 22.0h,
                                                                                                                以54%的产率得到[4-[2-[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-13-acetyloxy-2,15,17-trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-1'-(2-methylpropyl)-6,23,32-trioxospiro[8,33-dioxa-24,27,29-triazapentacyclo[23.6.1.14,7.05,31.026,30]tritriaconta-1(31),2,4,9,19,21,25,29-octaene-28,4'-piperidine]-27-carbonyl]oxyethyl-(propanoyloxymethoxycarbonyl)amino]-1-phosphonobutyl]phosphonic acid