Using COC(=O)C(Oc1cccc(OC)c1)C(=O)OC, N=C(N)N1CCOCC1 to produce COc1cccc(Oc2c(O)nc(N3CCOCC3)nc2O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.