Vanilla works GREAT!
....if you want something to get their close range attention. I've never seen does go out of their way to come and smell it, but when they work their way up a trail, many will stop and smell the source. So it can be used to stop them for a shot. In fact, several other lures can be used likewise.
I wouldn't use it as an attraction. If it were me, I'd try using doe urine and a touch of interdigital gland on a drag. In late season, bucks are still ready and looking to breed and if you can pique that curiosity, you have a chance.
I'd still put most all my focus on hunting near where the highest numbers of does are though.
iSnipe