Brechin crashed out of the Petrofac Training Cup after being well beaten at home by League One rivals Peterhead.
Gary Naysmith’s side gelled well in a 2-1 win over Forfar Athletic on Saturday with nine players handed their first competitive start.
Dundee’s reward for beating Aberdeen at the weekend is a home tie against Celtic in the last 16 of the Scottish Cup.
Scottish Cup holders St Johnstone and last year’s beaten finalists Dundee United have both been handed difficult fourth round ties after the draw was made this afternoon.
East Fife assistant boss Dougie Anderson was able to take plenty of positives from East Fife’s Fife Cup clash with Dunfermline despite their 2-1 defeat.