A friend of mine asked if I could find any resources for 3D NMR structure determination. He has a steroid structure with known stereochemistry at three sites, and has synthesized and separated two diastereomers with a fourth stereocenter. So far he hasn't been able to grow crystals large enough for a single-crystal X-ray, and is now willing to pay a reasonable amount for an NMR structure determination. His lab is in the northeast US if that is important for transporting the samples.
Does anybody know of commercial ventures that routinely perform 3D NMR structure determinations? Or failing that, of a researcher in the field that would be willing to do it for a price? Or even for a good place to look for leads?
Thanks for any help you can provide