i don't need visa for istanbul turkey - final destination. am I qualified for the 72 h policy?

my plan is: 30.07.2015 fly from ulaaanbaatar to pek, 72 hours beijing and then on 02.08.2014 pek to istanbul. the problem is that the flight from beijing to istanbul has a 3 hours stop in baku (azerbaijan) where i have no entry permit (i will stay anyway in the airport for this 3 hours...) cheers
paul