Using C=CCCC(=O)C=Cc1cnc(C)nc1, CCOC(=O)CC(=O)OCC to produce C=CCCC(=O)CC(c1cnc(C)nc1)C(C(=O)OCC)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.