Using C1COCCN1, CCOC(=O)c1ccc(N2CCC(Cc3ccccc3N3CCN(C)CC3)C2=O)cc1 to produce CN1CCN(c2ccccc2CC2CCN(c3ccc(C(=O)N4CCOCC4)cc3)C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.