Potassium tert-butoxide → HCID 117842884, compound

Participants

Reaction Steps

A solution of 1M potassium tertbutoxide in THF (0.10 mL, 0.10 mmol) was added to a solution of (R)-4-((R)-1-hydroxyethyl)-1-4R)-1-(4-methoxyphenyl)ethyl)pyrrolidin-2-one 1.04 (27 mg, 0.1 mmol) in THF (0.5 mL) at room temperature. After 15 minutes, a solution of 4-(4-(4-chloro-3-methylpyrazolo[1,5-a]pyrazin-6-yl)phenyl)morpholine 5.11 (20 mg, 0.06 mmol) in THF (1.2 mL) was added under argon. After 90 minutes, an additional 14 mg of (R)-4-((R)-1-hydroxyethyl)-1-((R)-1-(4-methoxyphenyl)ethyl)pyrrolidin-2-one 1.04 and 0.05 mL of 1M potassium tertbutoxide in THF were added. After 5 hours, mixture was quenched by addition of sat. NH4Cl (aq) and extracted with ethyl acetate. Combined organics were washed with 1:1 water/brine, dried (Na2SO4), filtered, and concentrated under reduced pressure to yield (R)-1-((R)-1-(4-methoxyphenyl)ethyl)-4-((R)-1-(3-methyl-6-(4-morpholinophenyl)pyrazolo[1,5-a]pyrazin-4-yloxy)ethyl)pyrrolidin-2-one 5.12, which was used without further purification.

Provenance & Evidence