Hydrochloric Acid → HCID 67820091, compound

Participants

Reaction Steps

ethyl β-[[[[4-[4-(aminoiminomethyl)phenyl]butyl]amino]carbonyl]amino]-3-pyridinepropanoate TFA (100 mg; 2 mmol), methanol (5ml), and 2N LiOH (5 ml) were stirred for 30 min. The solution was acidified to pH=3 with 3N HCl and reduced to dryness on a rotary evaporator. The residue was dissolved in acetonitrile/water and purified by HPLC on a C-18 HPLC column (30 cm×5 cm). A gradient of 10 to 40% acetonitrile/water/ 0.05% TFA in 30 min. was used and the acid eluted at an acetonitrile concentration of 15%. Fractions containing the desired peak were lyophilized to give 70 mg of white solid.

Provenance & Evidence