Using O=C1c2ccccc2C(=O)N1CCCBr, O=C1CCC(c2ccc(O)cc2)=NN1 to produce O=C1CCC(c2ccc(OCCCN3C(=O)c4ccccc4C3=O)cc2)=NN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.