1-Butanesulfonyl chloride → HCID 135541389, compound

Participants

Reaction Conditions

Reaction Steps

To the product of Example 205 (21.5 g, 0.05 mmol) in pyridine (1 mL) was added 1-butanesulfonyl chloride (26 mL, 0.2 mmol). The reaction mixture was heated in a microwave reactor at 120° C. for 120 minutes. The reaction was cooled to 25° C. and concentrated under reduced pressure. The residue was triturated with water (1 mL), filtered, and washed with 1:1 hexane:ethyl acetate. The crude product was chromatographed on silica gel eluting with 199:1 dichloromethane:methanol to give the title compound (8 mg, 29%). 1H NMR (300 MHz, DMSO-d6) δ 0.84 (t, J=7.35 Hz, 3 H) 0.98 (d, J=6.62 Hz, 6 H) 1.37 (m, 2 H) 1.56 (m, 2 H) 1.69 (m, 3 H) 3.19 (t, J=7.74 Hz, 2 H) 4.48 (t, J=7.74 Hz, 2 H) 7.50 (dd, J=7.91, 4.60 Hz, 1 H) 7.58 (dd, J=9.01, 2.39 Hz, 1 H) 7.65 (d, J=2.21 Hz, 1 H) 7.75 (d, J=8.82 Hz, 1 H) 8.55 (dd, J=8.09, 1.84 Hz, 1 H) 8.89 (dd, J=4.41, 1.84 Hz, 1 H) 10.35 (s, 1 H) 14.07 (s, 1 H) 15.13 (s, 1 H). MS (ESI+) m/z 548 (M+H)+.

Provenance & Evidence