Triethylamine → [1-(6-methoxy-3,4-dihydro-2H-1-oxa-9-aza-phenanthren-3-yl)-1H pyrazol-4-yl]-[2-(thiophen-2-ylsulfanyl)-ethyl]-amine

Participants

Reaction Conditions

Reaction Steps

2-(2-Bromo-ethylsulfanyl)-thiophene (317 mg, 0.13 mmol, 1.0 eq) is added at room temperature to a stirred solution of 1-(6-methoxy-3,4-dihydro-2H-1-oxa-9-aza-phenanthren-3-yl)-1H-pyrazol-4-ylamine (50 mg, 0.13 mmol, 1.0 eq) in acetonitrile (6 mL), followed by triethylamine (19 μL, 0.13 mmol, 1.0 eq). After 72 hours stirring at 80° C., the reaction mixture is concentrated to give a residue that is purified by column chromatography (silica gel, eluent: cyclohexane:ethyl acetate:methanol, 1:3:0 to 0:1:0 to 0:9:1, v/v/v) to afford [1-(6-methoxy-3,4-dihydro-2H-1-oxa-9-aza-phenanthren-3-yl)-1H-pyrazol-4-yl]-[2-(thiophen-2-ylsulfanyl)-ethyl]-amine as a brown viscous oil (9 mg, 14% yield).

Provenance & Evidence