Using Cn1c(CN2CCNCC2(C)C)nc2c(N3CCOCC3)nc(Cl)nc21, O=C1COC1 to produce Cn1c(CN2CCN(C3COC3)CC2(C)C)nc2c(N3CCOCC3)nc(Cl)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.