formyl-2 methoxycarbonyl-2' methylenedioxy-4',5' trimethoxy-4,5,6 biphenyle

hexamethoxy-3,4,5,6,7,8 fluorenone

4,5-methylenedioxy-4',5',6'-trimethoxy-1,1'-biphenyl-2,2'-dicarboxaldehyde

[(butanolidyl-4)-3 methyl]-6 formyl-6' hexamethoxy-2,3,4,2',3',4' biphenyle

methylenedioxy-7,8 trimethoxy-3,4,5 fluorenone