Seeing potons with chemical shifts larger than 7 ppm usually triggers the idea "Benzene". Maybe there is another choice.
Maybe it is not recommendable to start analyzing the multiplets. The molecular dormulae doesn't offer
that much possibilities and a lot of them might be excluded by simple boundary conditions.
Try to rewrite the long text describing the problem into a chemical reaction scheme.
After decomposing the proton multiplets getting the full structure should be not that difficult.
The two dimensional spectra are helpful to get an unambiguous solution.