2-PROPENOIC ACID, 1,1'-[2-[[[[[4-[[[2,2-DIMETHYL-3-[2,2-DIMETHYL-3-[[[[3-METHYL-4-[[[3-[(1-OXO-2-PROPEN-1-YL)OXY]-2,2-BIS[[(1-OXO-2-PROPEN-1-YL)OXY]METHYL]PROPOXY]CARBONYL]AMINO]PHENYL]AMINO]CARBONYL]OXY]-1-OXOPROPOXY]PROPOXY]CARBONYL]AMINO]-2-METHYLPHENY