Using CC(=O)CC(=O)OCCCc1cccnc1, N to produce CCCC1C(C(=O)OCCCc2cccnc2)=C(C)NC(C)=C1C(=O)OCCCc1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.