3,4-diphenylfuran-2,5-dicarboxylic acid

1-oxa-4,7,10,13-tetrazacyclopentadecane-3,14-dione

1-oxa-4,7,10,13,16-pentazacyclooctadecane-3,17-dione

1,4,7,10,13,16-hexaoxacyclooctadecane-2,6-dione

3,4-二苯基-2-糠酸甲酯