Trifluoroacetic acid → HCID 69832035, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of [2-[6-fluoro-2-oxo-3-(3,4-dimethyl-1H-pyrrol-2-yl)-1,2-dihydro-benzo[cd]indol-5-ylsulfanyl]-ethyl]-carbamic acid tent-butyl ester (from Example 49 above) (66 mg, 0.145 mmol) in CH2Cl2 (5 mL) was added TFA (Aldrich, 2.5 mL) at 0° C. The mixture was stirred at 0° C. for 1 hour. Aqueous ammonium hydroxide (4 mL) and ethyl acetate were added. The aqueous phase was extracted with ethyl acetate. The ethyl acetate layers were combined and washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by RP-HPLC (C-18, eluted with 1% acetonitrile/0.05% TFA in H2O) to give 5-(2-amino-ethylsulfanyl)-6-fluoro-3-(3,4-dimethyl-1H-pyrrol-2-yl)-1H-benzo[cd]indol-2-one trifluoroacetic acid salt as a yellow-green solid. (Yield 20 mg, 29.4%).

Provenance & Evidence