Cesium carbonate → 2-({3-[1-(cyclohexylamino)-4-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}oxy)acetamide

Participants

Reaction Steps

The product of Example 306C (13 mg, 0.028 mmol) in N,N-dimethylformamide (5 mL) was reacted with cesium carbonate (0.0137 g, 0.114 mol) and 2-bromoacetamide (0.008 g, 0.058 mmol) according to the procedure as described in Example 304J to give the title compound. The sodium salt was prepared according to the procedure of Example 1D (7 mg, 48%). 1H NMR (300 MHz, DMSO-d6) δ ppm 1.36 (m, 10 H) 2.96 (bs, 1 H) 4.49 (s, 2 H) 5.67 (d, J=4.04 Hz, 1 H) 7.04 (t, J=7.54 Hz, 1 H) 7.20 (m, 3 H) 7.40 (s, 1 H) 7.47 (m, 1 H) 7.62 (s, 1 H) 7.74 (d, J=8.46 Hz, 1 H) 8.05 (d, J=6.62 Hz, 1 H) 16.26 (s, 1 H). (ESI−) m/z 510 (M−H)−, m/z 532 (M+Na−H)−1.

Provenance & Evidence