Using COC(=O)C1c2ccccc2C(C(=O)OC)N1CCNC(=O)OC(C)(C)C to produce COC(=O)C1c2ccccc2C2C(=O)NCCN21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.