No to the OP but I do think there is a deal to be worked out.
I think it comes from a general premise of:
1. Hoglander has very low value.
2. Desharnais has very low value and may cost a minor asset to move.
3. Pettersson can come with up to 50% retention and there's a strong possibility that if he is the target, the will look to extend him for next year.
If you want it to be Hoglander and Desharnais, the gap is greater than a 2nd rounder for Pettersson along (even retained). I think something like Hogs, Des, 1st for Pettersson (no retention) is doable. If you want retention, tack on a 3rd and we can send back a 5th or something.
If you are flexible with Desharnais, I think we can get closer if you replace him with Pettersson or Mynio. So Hoglander, Pettersson or Mynio, 2nd for Pettersson would be about right.
If you want Puljujarvi, I would put his value around a 4th to be honest. So there's a couple ways to do that:
Hoglander, Petts/Mynio, 2nd, 4th for Pettersson, Puljujarvi
Hoglander, Petts/Mynio, 1st for Pettersson (retained), Puljujarvi
You could also make it a larger trade of: Hoglander, Pettersson, Desharnais, 1st for Pettersson (50%), Puljujarvi, 4th