1. Ishibashi T, et al. 2-Nicotinamidoethyl acetate (SG-209) is a potassium channel opener: structure activity relationship among nicorandil derivatives. Naunyn Schmiedebergs Arch Pharmacol. 1991 Aug;344(2):235-9. 2. Yonekura H, et al. Effects of N-(2-hydroxyethyl)nicotinamide nitrate (nicorandil; SG-75) and its derivatives on pancreatic exocrine secretion in the dog. Pancreas. 1990;5(1):75-81.