Alanyaspor forward Junior Fernandes scored in the 92nd minute in the Antalya city derby at New Antalya Stadium.
Meanwhile, Alanyaspor defender Welinton Souza Silva was dismissed after he was shown a red card in the 64th minute.
The second legs of the semifinals will be held April 21-22, with the final match on May 5 at Istanbul's Ataturk Olympic Stadium.
