HCID 59242665, compound → HCID 59242661, compound

Participants

Reaction Steps

To a solution of 4-[5-(4-fluorophenyl)-6-trifluoromethyl-pyridazin-3-yl]-piperazine-1-carboxylic acid tert-butyl ester (D8) (1.25 g, 2.93 mmol) in methanol (50 ml) was added Amberlyst® 15 ion exchange resin, acidic form (4.1 mmol/g) (3.6 g, 14.64 mmol) and the reaction mixture was shaken at room temperature for 18 h. After this period, the mixture was filtered and then a saturated solution of ammonia in methanol was added. The mixture was shaken for 1 h, filtered and the filtrate evaporated in vacuo. The crude product was purified by HPLC. The desired fractions were collected and evaporated in vacuo to yield E6 (0.507 g, 53%). C15H14F4N4 requires 326; Found 327 (MH+).

Provenance & Evidence