Using CCOC(OCC)c1ccc(C=O)cc1, CC(C)CN1CCC2(CCNC2)CC1 to produce CCOC(OCC)c1ccc(CN2CCC3(CCN(CC(C)C)CC3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.