Minimum Fuel is Final Reserve, end of. If you are going to land with less than this then it is a MAYDAY if you only think you might land with less its a PAN.
CNR or Final Reserve + Alternate Fuel is what you need to take you from Destination to Alternate leaving Final Reserve intact.
Some here seem to think CNR is minimum fuel, it is not. Some here seem to think that as soon as you hit CNR you MUST divert probably because they view CNR as minimum fuel. Madness. You may well be able to land after another approach or a few minutes holding and touch down with more fuel than you would have had had you diverted. Of course diverting may well be the correct thing but it is not the only option.