Lithium Hydroxide → 1-(3-(1-Naphthyloxy)propyl)-3-((e)-2-phenylvinyl)-1h-indole-2-carboxylic acid

Participants

Reaction Steps

A mixture of EXAMPLE 31C (100 mg), (E)-styrylboronic acid (39 mg), and bis(triphenylphosphine)palladium(II) dichloride (8 mg) in 7:3:3 dimethoxyethane:ethanol:1N aqueous LiOH (2 mL) was heated under microwave conditions (CEM Discover) at 130° C. for 30 minutes The mixture was quenched with 1NHCl and extracted with ethyl acetate. The extract was dried (Na2SO4), filtered, and concentrated. The concentrate was purified by reverse phaseHPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid) to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ 13.59 (br, 1H), 8.24 (m, 1H), 8.15 (d, 1H), 7.94 (m, 1H), 7.87 (m, 1H), 7.69 (d, 1H), 7.59 (m, 2H), 7.53 (m, 2H), 7.46 (m, 1H), 7.40 (m, 3H), 7.28 (m, 3H), 7.21 (m 1H), 6.87 (d, 1H), 4.87 (t, 2H), 4.17 (t, 2H), 2.34 (m, 2H).

Provenance & Evidence