Hydrochloric Acid → HCID 178502324, compound

Participants

Reaction Steps

(1R,3S,4S)-tert-butyl 3-(2′-((S)-1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)pyrrolidin-2-yl)-1H,1′H-7,7′-binaphtho[1,2-d]imidazol-2-yl)-2-azabicyclo[2.2.1]heptane-2-carboxylate (102 mg, 0.135 mmol) was dissolved in DCM (5 mL) and treated with HCl (4M in dioxane, 1 mL). After 2 h, the reaction mixture was concentrated. The residue was treated with (S)-2-(methoxycarbonylamino)-3-methylbutanoic acid (28 mg, 0.149 mmol), COMU (58 mg, 0.135 mmol) and DMF (3 mL). DIPEA (0.12 mL, 0.675 mmol) was added and the reaction mixture was stirred for 1.5 h before being quenched with H2O and purified by HPLC to afford the title compound (86 mg, 77%). (ESI) m/z 814 [M+H]+.

Provenance & Evidence