Acetic Acid → (+/-)-{3-Chloro-6-[(4-fluoro-benzenesulfonyl)-methyl-amino]-5,6,7,8-tetrahydro-2,4b-diaza-fluoren-9-yl}-acetic acid

Participants

Reaction Steps

To a solution of 4 mg of (±)-{3-chloro-6-[(4-fluoro-benzenesulfonyl)-methyl-amino]-5,6,7,8-tetrahydro-2,4b-diaza-fluoren-9-yl}-acetic acid methyl ester in 0.2 mL of THF was added 0.1 mL of water, followed by 0.02 mL of 1 N aq. LiOH solution. After stirring for 1 h at room temperature, 0.05 mL of AcOH was added. The reaction mixture was the dried with a jet flow of nitrogen. The residue was suspended in 0.3 mL of EtOAc and filtered through silica gel. The filtrate was concentrated to give 2 mg of the title compound as a white solid. MS (ESI): 452.1 (M+1).

Provenance & Evidence