Using Clc1ncc(Br)c(-c2cc3ccccc3s2)n1, O=C1NCCN1CCO to produce O=C1NCCN1CCOc1ncc(Br)c(-c2cc3ccccc3s2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.