Using COC(=O)COc1cccc(C=O)c1, CCCCCNc1nc(N)nc(C)c1CCCN to produce CCCCCNc1nc(N)nc(C)c1CCCNCc1cccc(OCC(=O)OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.