Phosphorus oxychloride → 4-(2-(4-chloro-3-(4-fluorophenyl)-5-phenyl-1H-pyrazolo[3,4-c]pyridazin-1-yl)ethyl)morpholine

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Reaction Steps

3-(4-fluorophenyl)-1-(2-morpholinoethyl)-5-phenyl-1H-pyrazolo[3,4-c]pyridazin-4-ol (27.8 mg, 0.07 mmol) was heated to 80° C. in POCl3 (0.5 ml) for 2.75 h the solvent was removed in vacuo and the crude purified by preparative HPLC to give Compound 78 as an orange solid (10.7 mg).

Provenance & Evidence