Rami, Harshad K.; Thompson, Mervyn; Wyman, Paul; Jerman, Jeffrey C.; Egerton, Julie; Brough, Stephen; Stevens, Alexander J.; Randall, Andrew D.; Smart, Darren; Gunthorpe, Martin J.; Davis, John B. Bioorganic and Medicinal Chemistry Letters, 2004 , vol. 14, # 14 p. 3631 - 3634