Using CCOC(=O)NC1(CN2CCN(C(=O)OCc3ccccc3)CC2=O)CCN(c2ccnc(C)c2)CC1 to produce CCOC(=O)NC1(CN2CCNCC2=O)CCN(c2ccnc(C)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.