Spiro[4.5]deca-3,6,9-triene-2,8-dione 、
(7aS)-1-(4-methoxyphenyl)-7a-methyl-4,5,6,7-tetrahydroindene 以
二氯甲烷 为溶剂,
反应 168000.0h,
以42%的产率得到(1'S,2'R,6'R,7'R,8'S)-7'-(4-methoxyphenyl)-8'-methylspiro[cyclohexa-2,5-diene-4,3'-tetracyclo[5.5.2.01,8.02,6]tetradec-13-ene]-1,5'-dione