Using O=c1ccoc2cc(OCCCBr)ccc12, NCC1COc2ccc(O)cc2O1 to produce O=c1ccoc2cc(OCCCNCC3COc4ccc(O)cc4O3)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.