2,6-Lutidine → 4-tert-butyl-N-[6-chloro-2-(4-isopropyl-5-methoxymethyl-4H-[1,2,4]triazol-3-yl)-pyridin-3-yl]-benzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

A 25 mL scintillation vial was charged with N-isopropyl-2-methoxyacetamide (132 mg, 1.0 mmol), POCl3 (0.19 mL, 2.0 mmol), 2,6-lutidine (0.30 mL, 2.4 M), and CH3CN (10 mL). The vial was sealed, heated to 40° C., and stirred for four hours. The volatiles were then evacuated in vacuo and to the residue was added 4-tert-butyl-N-(6-chloro-2-hydrazinocarbonyl-pyridin-3-yl)-benzenesulfonamide (193 mg, 0.5 mmol), DIPEA (2.0 mL), and dioxane (2.0 mL). The vial was sealed, heated to 130° C., and stirred for two hours. The volatiles was then evacuated in vacuo, and the residue was purified via automated silica gel chromatography and then preparative HPLC to afford 4-tert-butyl-N-[6-chloro-2-(4-isopropyl-5-methoxymethyl-4H-[1,2,4]triazol-3-yl)-pyridin-3-yl]-benzenesulfonamide as a white powder: MS (ES) M+H expected 478.2, found 478.1.

Provenance & Evidence