Hydrochloric Acid → [1-(2-{5-[6-(4-{2-[4-Cyano-1-(2-methoxycarbonylamino-2-phenyl-acetyl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-phenyl)-naphthalen-2-yl]-1H-imidazol-2-yl}-4-methylene-pyrrolidine-1-carbonyl)-2-methyl-propyl]-carbamic acid methyl ester

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Reaction Steps

4-Cyano-2-{5-[4-(6-{2-[1-(2-methoxycarbonylamino-3-methyl-butyryl)-4-methylene-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-pyrrolidine-1-carboxylic acid tert-butyl ester (102.0 mg, 0.134 mmol) was stirred in DCM (2.0 mL)/HCl in dioxane (4M, 2.0 mL). After 40 minutes all volatiles were removed in vacuo. The crude material was dissolved in DMF (1.5 mL) and methoxycarbonylamino-phenyl-acetic acid (28.2 mg, 0.134 mmol), DIEA (52.2 mg, 0.4 mmol), and COMU (57.7 mg, 0.134 mmol) was added and stirring at room temperature was continued. After 15 minutes, the reaction was quenched with aqueous HCl (1N, 0.1 mL). The crude reaction mixture was purified via RP-HPLC (eluent: water/MeCN w/0.1% TFA). The product containing fractions were lyophilized to give the final compound (59.3.0 mg).

Provenance & Evidence