Eamonn Brophy's 82nd-minute effort earned Dumbarton a 2-1 win at home to 10-man Livingston in the Scottish Championship.Kevin Cawley's downward header five minutes from half-time put the hosts, looking to arrest a run of five defeats and one draw in their last six games in all competitions, ahead against their fellow strugglers.But a Gary Glen header brought the visitors level a minute before the break.Livingston were dealt a blow when substitute Myles Hippolyte, who had only come on at the break, was sent off in the 71st minute for violent conduct and their opponents duly took advantage as Brophy slotted home a late winner.The loss dropped Livingston to the foot of the table as Dumbarton climbed closer to mid-table.