Using CCCCN=C=O, COC1C(OC(=O)N2CCOCC2)CCC2(CO2)C1C1(C)OC1CCO to produce CCCCNC(=O)OCCC1OC1(C)C1C(OC)C(OC(=O)N2CCOCC2)CCC12CO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.