Using Clc1ccc(CBr)cc1, C1=C(c2cc3ccccc3s2)CCNC1 to produce Clc1ccc(CN2CC=C(c3cc4ccccc4s3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.