EW 7520 then SN 3698 at Barcelona
Hamburg → Barcelona → Brussels
Timetable, Barcelona time
18:45EW 7520 from Hamburg at the gate
12:25SN 3698 to Brussels leaves the gate
17 h 40 apart on the timetable, overnight
SN 3698 leaves 17 h 40 after EW 7520 arrives on the timetable: more than half a day, so not a connection we count.