SN 3703 then FR 2507 at Barcelona
Brussels → Barcelona → Cologne
Timetable, Barcelona time
16:50SN 3703 from Brussels at the gate
06:20FR 2507 to Cologne leaves the gate
13 h 30 apart on the timetable, overnight
FR 2507 leaves 13 h 30 after SN 3703 arrives on the timetable: more than half a day, so not a connection we count.