Hydrochloric Acid → HCID 89544863, compound

Participants

Reaction Steps

Step 3 To a solution of {(R)-[3-(4-amino-3-methyl-benzoyl)-4-chloro-2-fluoro-phenyl]-cyclopropyl-methyl}-carbamic acid tert-butyl ester (570 mg, 1.32 mmol) in DCM (6 mL) was added 4M HCl in dioxane (1.65 mL, 6.58 mmol, 5 eq) and the reaction stirred for 18 hours. The resulting mixture was partitioned between DCM (50 mL) and water (20 mL) and basified with NaOH. Not all of the compound dissolved and so the aqueous phase was extracted with 4:1 CHCl3:IPA (2×30 mL). The combined organics were washed with brine (20 mL) and then dried (MgSO4), filtered and concentrated to give [3-((R)-amino-cyclopropyl-methyl)-6-chloro-2-fluoro-phenyl]-(4-amino-3-methyl-phenyl)-methanone (451 mg).

Provenance & Evidence