Triethylamine → HCID 53380049, compound

Participants

Reaction Conditions

Reaction Steps

To (6-{1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-2,2-dioxido-1,3-dihydro-2,1,3-benzothiadiazol-5-yl}pyridin-2-yl)methanol (25-1) (30 mg, 0.079 mmol, 1.0 eq) was dissolved in NMP (1 mL) and triethylamine (0.04 mL, 0.24 mmol, 3.0 eq) was added followed by mesyl chloride (0.008 mL, 0.1 mmol, 1.2 eq). After 10 minutes, 1-(methylsulfonyl)piperazine (28.6 mg, 0.17 mmol, 2.1 eq) and DIPEA (0.061 mL, 0.35 mmol, 4.4 eq) were added. The resulting mixture stirred at 80° C. for 10 minutes. The mixture was cooled and purified by reverse phase chromatography (Waters Sunfire MSC18, 10-100% acetonitrile in water with 0.1% TFA modifier) to afford 1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-5-(6-{[4-(methylsulfonyl)piperazin-1-yl]methyl}pyridin-2-yl)-1,3-dihydro-2,1,3-benzothiadiazole 2,2-dioxide (25-2) as a white solid. 1H NMR (400 MHz, CD3OD): δ 7.99 (s, 1 H); 7.98 (d, J=8.0 Hz, 1 H); 7.84 (dd, J=1.6, 8.4 Hz, 1 H); 7.77 (d, J=1.6 Hz, 1 H); 7.44 (dd, J=1.6, 6.0 Hz, 1 H); 7.13 (d, J=8.4 Hz, 1 H); 4.66 (s, 2 H); 3.97 (d, J=7.2 Hz, 2 H); 3.62 (brs, 8 H); 3.39 (s, 3 H); 2.99 (s, 3 H); 2.21 (m, 1 H); 1.65 (m, 1 H); 1.44 (m, 1 H). HRMS m/z (M+H) 528.1538 found, 528.1545 required.

Provenance & Evidence