7-chloro-2-((1-(4-methoxybenzyl)-5-(pyrrolidin-1-yl)-1H-1,2,4-triazol-3-yl)ethynyl)quinoxaline → 7-chloro-2-(2-(1-(4-methoxybenzyl)-5-(pyrrolidin-1-yl)-1H-1,2,4-triazol-3-yl)ethyl)quinoxaline

Participants

Reaction Steps

7-chloro-2-((1-(4-methoxybenzyl)-5-(pyrrolidin-1-yl)-1H-1,2,4-triazol-3-yl)ethynyl)quinoxaline (33 mg, 74.2 μmol, Eq: 1.00) was stirred in ethyl acetate (12 ml) with palladium, 5 wt % on barium sulfate, reduced (33.0 mg, 310 μmol, Eq: 4.18) under a hydrogen atmosphere for 2.5 h. Then 3 drops of acetic acid were added and stirring was continued for 1.5 h. The crude material was applied on silica gel and purified by column chromatography to give 7-chloro-2-{2-[1-(4-methoxy-benzyl)-5-pyrrolidin-1-yl-1H-[1,2,4]triazol-3-yl]-ethyl}-quinoxaline (17 mg, 51.1%) as light red oil. MS: m/z=449.4 (M+H+)

Provenance & Evidence