Using C1COCCN1, CC1(C)CC2CC(C)(CN2C(=O)c2ccc(N3CCC(C(=O)O)C3)cc2)C1 to produce CC1(C)CC2CC(C)(CN2C(=O)c2ccc(N3CCC(C(=O)N4CCOCC4)C3)cc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.