Disassemble IKEA Godmorgon drawer
I have had and solved this problem. There are three wood dowels on each side between those cam lock screws.  You must cut them. When you do, you will be able to tilt the side piece in order to extract the screws. I did not feel like getting out my multittool for such a small job, so I used a sharp bread knife. The dowels are not even 1/4" so you will have no problem. To reassemble, I would recommend that you first insert blind nails into each dowel for stability. I suppose you could also try drilling out the dowels and replacing them, but that seems like overkill.