Methanesulfonyl chloride → HCID 73053993, compound

Participants

Reaction Steps

To a solution of (S)-5-amino-N-(4-(3-fluoro-4-(trifluoromethoxy)phenyl)-3,4-dihydro-2H-pyrano[3,2-b]pyridin-4-yl)picolinamide (44 mg, 0.098 mmol) in DCM (0.6 mL) were added methanesulfonyl chloride (8.40 μl, 0.128 mmol) and DIEA (0.022 mL, 0.128 mmol). The resulting mixture was stirred at room temperature overnight. A solution of NaOH (10 N, 2 drops) was added, and the resulting mixture was stirred at room temperature for 2 h. The reaction mixture was filtered and the filtrate concentrated in vacuo. The residue was purified by prep HPLC (0-100% MeCN 0.1% TFA/H2O 0.1% TFA) to give the title compound as a white solid. MS (ESI, positive ion) m/z: 527.0 (MH+). 1H NMR (400MHz, d4-MeOH) δ: 8.48 (d, J=2.3 Hz, 1H), 8.30 (dd, J=4.5, 1.4 Hz, 1H), 8.05 (d, J=8.6 Hz, 1H), 7.83 (dd, J=8.6, 2.5 Hz, 1H), 7.37-7.62 (m, 4H), 7.25 (d, J=8.6 Hz, 1H), 4.47 (dt, J=11.9, 4.4 Hz, 1H), 4.05-4.26 (m, 1H), 3.12-3.25 (m, 2H), 3.10 (s, 3H).

Provenance & Evidence