Using C=CCN(c1ncnc2nc[nH]c12)C1CCCCC1, COC(=O)CCCCCCCCBr to produce C=CCN(c1ncnc2c1ncn2CCCCCCCCC(=O)OC)C1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.