Best non-cheme major for drug design and possibly chemical (pharmaceutical focus) engineering

Hello,

I am a sophomore pre-med student at Cornell. Initially, I was on a bioengineering track, but what I realized along the way was that I was more interested in developing and designing drugs than making devices and artificial organs. Also, I loved Orgo I and got out with an A+. I started to doubt that bioengineering was was right in light of my interest in making pharmaceuticals and biopharmaceuticals, which would be my backup if I don’t go to med school or something that I would research as a physician-scientist. Thus, after college, if I don’t go to med school, I would probably like to get a masters in Chemical engineering to combine my love for chemistry with an engineering mindset so I have both as tools under my belt and widen my career options, which I don’t see as a problem because ChemE’s also do a lot of applied chem and biochem research, at least at cornell. what would be the best major to allow me to have the knowledge to rationally design drugs and biopharmaceuticals and potentially get a masters in cheme? It’s too late for me to major in cheme, but would chemistry, biochem or bioengineering be best as alternatives? sorry for the rant and potentially disorganized thoughts, but any help would be greatly, greatly appreciated!!!