2-Amino-N-phenylpropanamide (Compound 5b) hydrochloride is a Tocainid (HY-B1798) analog. Tocainid is an antiarrythmic agent[1].
References
[1] Lee K J, et al. Resolution of Tocainide and Its Analogues on a Doubly Tethered N-CH 3 Amide Chiral Stationary Phase Based on (+)-(18-Crown-6)-2, 3, 11, 12-tetracarboxylic Acid. Bulletin of the Korean Chemical Society, 2013, 34(10): 2978-2982.