Cesium carbonate → [5-(4H-Pyrazol-4-yl)-thiophen-3-yl]-(octahydro-quinolin-1-yl)-methanone

Participants

Reaction Conditions

Reaction Steps

cis-(5-Bromo-thiophen-3-yl)-(octahydro-quinolin-1-yl)-methanone (0.15 mmol) was added to a solution of caesium carbonate (0.15 mmol), 4-pyrazoleboronic acid (0.3 mmol) and palladium tetrakis(triphenylphosphine) (0.03 mmol) in DME (6 mL), IMS (2 mL) and water (0.001 mL). The reaction mixture was heated by microwave irradiation to 140° C. for 20 minutes and then diluted with ethyl acetate (5 mL) and washed with water. The organic solution was dried and filtered and the solvent evaporated. The residue was purified by HPLC, eluting with 10%-98% acetonitrile in water (0.1% formic acid) over 30 minutes. The fractions containing the desired product were concentrated under vacuum to give the title compound as a pale yellow oil (10 mg). LCMS m/z 316.27 [M+H]+ RT=9.34 min. (Analytical Method 2).

Provenance & Evidence