Diisopropylethylamine → HCID 66848002, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of ((2S,5R)-5-(5-fluoropyridin-3-yl)pyrrolidin-2-yl)methanol (0.910 g, 4.64 mmol), ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (Preparation B, 1.05 g, 4.64 mmol) and DIEA (1.10 mL, 6.00 mmol) in isopropyl alcohol (1.0 mL) was heated at 90° C. for 16 hours. The reaction mixture was concentrated and the residue was purified by reverse phase column chromatography (0-50% acetonitrile/water) followed by normal phase column chromatography (2-5% MeOH/DCM) to afford ethyl 5-((2R,5S)-2-(5-fluoropyridin-3-yl)-5-(hydroxymethyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylate (0.250 g, 14% yield) as a viscous, clear oil. MS (apci) m/z=386.0 (M+H).

Provenance & Evidence