Sodium Hydroxide → Sodium (4r)-4-methyl-4-(3-methylbutyl)-2-{7-[(1-naphthylsulfonyl)amino]-1,1-dioxido-4h-1,2,4-benzothiadiazin-3-yl}-3-oxo-3,4-dihydronaphthalen-1-olate

Participants

Reaction Steps

A mixture of Example 105A (30.0 mg, 0.048 mmol) and 0.998 M sodium hydroxide (0.048 mL, 0.048 mmol) in water (3 mL) was stirred at rt for 16 h. The reaction mixture was concentrated in vacuo to give the title compound (21 mg, 68% yield). 1H NMR (300 MHz, DMSO-d6) δ 0.40 m, 1 H) 0.65 (d, J=6.62 Hz, 3 H) 0.67 m, 3 H) 0.75 (m, 1 H) 1.26 (m, 1H) 1.34 (s, 3 H) 1.69 m, 1 H) 2.10 m, 1 H) 7.12 m, 2 H) 7.23 (s, 1 H) 7.29 (m, 1 H) 7.44 m, 2 H) 7.64 m, 2 H) 7.74 m, 1 H) 8.00 (d, J=7.72 Hz, 1 H) 8.07 (d, J=7.72 Hz, 1 H) 8.16 (d, J=7.35 Hz, 1 H) 8.20 m, 1 H) 8.76 (s, 1 H) 10.82 (s, 1 H) 15.39 (s, 1 H). MS (ESI+) m/z 652.0 (M+H)+, 630.0 (M+H—Na)+, 647 (M−Na+NH4)+, (ESI−) m/z 628.0 (M−H—Na)−.

Provenance & Evidence