FK 778 is a analogue of A77 1726, the active metabolite of the antirheumatic drug leflunomide, where the isoxazole ring has opened to become a nitrile and an alkyne. References: Kaplan MJ. FK-778 Astellas. Curr Opin Investig Drugs. 2005 May;6(5):526-36. Review. PubMed PMID: 15912968.

纯度：≥98%

CAS：185915-33-7