I have seen studies that have seen differences in the metabolic transmitters to the brain satiety region with high fructose corn syrup. I don't have time to dig them up again, but I will later.
Hopefully those studies will explain how glucose and fructose from high fructose corn syrup differ from glucose and fructose from hydrolyzed sucrose. If the satiety profiles are different then the formulas and structures of glucose and fructose from one would have to be different than the other. They're not.
Sucrose is hydrolyzed very quickly in the gut and shouldn't vary much from hfcs. If anything, high fructose corn syrup, a monsaccharide, should get glucose into your blood sooner and, therefore, create a feeling of fullness faster than sucrose. This is the opposite of what you're claiming.