Using C#CCO, Brc1ccc(-c2cnc3c(-c4ccccc4)cnn3c2)cc1 to produce OCC#Cc1ccc(-c2cnc3c(-c4ccccc4)cnn3c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.