:Teriflunomide might not be the same as A77 1726, contrary to Drugs of the Future. PubChem has 
 :*an id 5479847 for teriflunomide (calling it the active metabolite of leflunomide) with a link to the MeSH entry on A77 1726 
 :*and an id 16760239 for A77 1726 (which ís the active metabolite of leflunomide according to the Wikipedia article A77 1726). 
 :I removed the references to the identity of teriflunomide and A77 1726 (on Leflunomide and Therapies under investigation for multiple sclerosis as well)