Dimethyl Sulfoxide → HCID 67300355, compound

Participants

Reaction Steps

2-{5-[7-amino-5-(8-azabicyclo[3.2.1]oct-3-yl)-6-iodopyrazolo[1,5-a]pyrimidin-3-yl]pyridin-2-yl}propan-2-ol tris(trifluoroacetate) (salt) (0.720 g, 0.851 mmol), sodium methanesulfinate (306 mg, 2.55 mmol), and Copper(I) iodide (486 mg, 2.55 mmol) were dissolved/suspended in dry dimethyl sulfoxide (18 mL, 250 mmol) under a nitrogen atmosphere. The reaction was placed in an oil bath at 90° C. After mixing 15 min, HPLC showed the starting material to have been consumed and a mixture of the desired material:des-iodo material was observed. The reaction mixture was poured into a 7:3 mixture of sat'd NH4Cl:20% NH4OH (200 ml) and extracted 3×75 ml with 10% IPA in DCM. The combined organics were washed with brine, dried, filtered and evaporated to provide a yellow oil, which was purified by silica gel chromatography, eluted with 0-15% (10% NH4OH in MeOH) in chloroform to provide the desired material as a yellow solid (319 mg).

Provenance & Evidence