How to run MD simulation on a protein with unnatural amino acid (formyl glycine(FGL))?

Hi everyone.
I need to run MD simulation on a protein with an unnatural amino acid (formyl glycine (FGL)). I Checked SwissSidechain - A database of non-natural sidechains for that but there was not FGL parameters there. I would really appreciate if anyone can help me.

Thanks in advance
Farial