1,3-Benzenedicarboxylic acid, 5,5′,5”-[1,3,5-benzenetriyltris(methyleneoxy)]tris-, 1,1′,1”,3,3′,3”-hexakis[1-methyl-1-(6-methyl-7-oxabicyclo[4.1.0]hept-3-yl )ethyl] ester