[Antibacterial activity of the derivatives of cholic acid (author's transl)]

The synthesis of derivatives of cholic acid with L-lysine and Lysil-lysine with antibacterial activity, is here described. Derivatives with one molecule of lysine show antibacterial activity at 100 mug/ml concentration, while lysil-lysine derivatives, particularly Col-Lys-Lys-NH2-2HCl, are effective also at 25 mug/ml.