Using Cc1c(C)c2ccc(OCCCBr)cc2oc1=O, ON=C1CCNCC1 to produce Cc1c(C)c2ccc(OCCCN3CCC(=NO)CC3)cc2oc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.