上游原料
ethyl (E)-4-(diethoxyphosphoryl)-3-methyl-2-butenoate2-formylphenylboronic acid2,4-di(tert-butyl)-6-iodophenol1,5-di(tert-butyl)-3-iodo-2-propoxybenzene; 2,4-di(tert-butyl)-6-iodophenyl propyl ether3',5'-di(tert-butyl)-2'-propoxy[1,1'-biphenyl]-2-carbaldehydeethyl (2E,4E)-5-[3',5'-di(tert-butyl)-2'-propoxy[1,1'-biphenyl]-2-yl]-3-methyl-2,4-pentadienoate
