1 DCH 3-(7-diaminomethyl-naphthalen-2-yl)-propionic acid ethyl ester 1.000 2 DX9 (2s)-3-(7-carbamimidoylnaphthalen-2-yl)-2-[4-({(3r)-1-[(1z)-ethanimidoyl]pyrrolidin-3-yl}oxy)phenyl]propanoic acid 0.806 3 BX3 (+)-2-[4-[(-1-acetimidoyl-4-piperidinyl)oxy]-3-(7-amidino-2-naphthyl)propionic acid 0.737