(S)-(2,2′-dimethoxy-[1,1′-binaphthalene]-3,3′-diyl)dimethanol 、 (-)-(S)-2,2'-bis[5-tosyloxy-3-oxa-1-pentyloxy]-1,1'-binaphthyl 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
以27%的产率得到55,56-dimethoxy-12,15,18,39,42,45-hexaoxanonacyclo[45.7.1.12,10.03,8.019,28.022,27.029,38.030,35.049,54]hexapentaconta-1(55),2(56),3,5,7,9,19(28),20,22,24,26,29(38),30,32,34,36,47,49,51,53-icosaene