Potent Inhibition of Thrombin by the Newly Synthesized Arginine Derivative No. 805. The Importance of Stereo-Structure of its Hydrophobic Carboxamide Portion. - Okamoto, S; Hijikata, A; Kikumoto, R; Tonomara, S; Hara, H; Ninomiya, K; Maruyama, A; Sugano, M; Tamao, Y (Biochem Biophys Res Commun, 1981)