4-bromo-7,8-dihydro-19-methoxy-2,12,16-trimethyl-18,14-metheno-6H,14H-dibenzo<1,5>dioxacyclotetradecin 在
iron(III)-acetylacetonate 、
仲丁基锂 作用下,
生成 meso-7,7',8,8'-tetrahydro-19,19'-dimethoxy-2,2',12,12',16,16'-hexamethyl-4,4'-bi-18,14-metheno-6H,14H-dibenzo
<1,5>dioxacyclotetradecin