Using NCC(O)c1ccco1, CC1(C)NC(=O)c2cc(OCCBr)ccc2O1 to produce NC(=O)c1cc(OCCNCC(O)c2ccco2)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.