The message says Compile Error - expected Function or Variable and highlights SaveAs2.
SaveAs2 incidentally is not available in Word 2007, but the OP says 2013 and in that version the following change doesn't produce the error.
Code:
With ActiveDocument
strfname = "C:\Users\" & Environ("Username") & "\Documents\" & .SelectContentControlsByTitle("Title")(1).Range.Text & ".PDF"
.SaveAs2 Filename:=strfname, FileFormat:=wdFormatPDF
End With