Efficient Preparation of 5-Amino-4-cyano-N-(cyclopropylcarbamoyl)-3-aryl-2, 3-dihydrothiophene-2-carboxamide Derivatives Without Using Any Other Catalysts
[Titchenell, Paul M.; Hollis Showalter; Pons, Jean-Francois; Barber, Alistair J.; Jin, Yafei; Antonetti, David A. Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 10 p. 3034 - 3038]