For me the priority group here is the amide and it’s N substituted with a propyl group so it’s an N- propylpropanamide. Then you need to add in the formyl and phenyl groups, which I think are pretty straightforward at positions 2 and 3. However I am far from an expert in the complexities of IUPAC nomenclature and I’ve not been able to find this compound yet on the internet for confirmation. Perhaps one of the organic chemists on here might be happy to chip in.