Hydrochloric Acid → HCID 68938521, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of EXAMPLE 402D (47 mg), o-tolylboronic acid (19 mg), tris(dibenzylidineacetone)dipalladium(0) (4.6 mg), tri-t-butyl-phosphonium tetrafluoroborate (3.5 mg), cesium fluoride (45.6 mg) and tetrahydrofuran (1.5 ml) was stirred at ambient temperature under a nitrogen atmosphere overnight. Additional o-tolylboronic acid (9.5 mg), tris(dibenzylidineacetone)dipalladium(0) (2.3 mg), tri-t-butyl-phosphonium tetrafluoroborate (1.8 mg) and cesium fluoride (23 mg) were added and stirring was continued at ambient temperature overnight. LiOH—H2O (42 mg) and water (0.5 ml) were added and the mixture was heated overnight at 60° C. The reaction mixture was acidified with 1 M HCl (aq), extracted (3×5 ml) with ethyl acetate, dried (MgSO4), filtered and concentrated. The concentrate was slurried in methanol and filtered through a syringe filter. The filtrate was concentrated. The concentrate was purified by reverse phase HPLC (50-95% acetonitrile/water/0.1% trifluoroacetic acid). 1H NMR (300 MHz, DMSO-d6) δ 13.10 (s, 1H), 10.86 (s, 1H), 8.20 (m, 1H), 7.86 (m, 1H), 7.48 (m, 4H), 7.28 (m, 4H), 6.99 (m, 1H), 6.90 (m, 2H), 4.23 (t, 2H), 3.45 (t, 2H), 2.25 (m, 2H), 2.05 (s, 3H).

Provenance & Evidence