Water → HCID 53374178, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 5-chloro-2-(3-methylquinoxalin-2-yl)-N-(tetrahydro-2H-pyran-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine (Example 1.001 (g)) (97 mg, 0.246 mmol), cyclopenten-1-ylboronic acid (55 mg, 0.491 mmol), tetrakis(triphenylphosphine)palladium(0) (57 mg, 0.0493 mmol), and cesium fluoride (112 mg, 0.737 mmol) in 1,2-dimethoxyethane (2.0 mL) was heated at 80° C. for 3 h. After being cooled to ambient temperature, the reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over sodium sulfate, filtrated and concentrated in vacuo. The crude was purified by silica gel column chromatography (hexane:ethyl acetate=9:1 to 2:3) to give 5-cyclopent-1-en-1-yl-2-(3-methylquinoxalin-2-yl)-N-(tetrahydro-2H-pyran-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine (the compound of Example 1.011 listed in the Table of Examples as described hereinafter). 1H-NMR (400 MHz, CDCl3): δ 1.73-1.86 (2H, m), 2.03-2.21 (4H, m), 2.60-2.66 (2H, m), 2.86-2.93 (2H, m), 3.05 (3H, s), 3.61 (2H, ddd, J=11.8, 11.8, 2.4 Hz), 3.77-3.87 (1H, m), 4.10 (2H, ddd, J=11.8, 3.3, 3.3 Hz), 6.19 (1H, s), 6.33 (1H, d, J=8.2 Hz), 6.68 (1H, s), 7.08 (1H, s), 7.72-7.79 (2H, m), 8.04-8.08 (1H, m), 8.17-8.21 (1H, m).

Provenance & Evidence