Using COC(=O)C(OC(C)(C)C)c1c(C)nc2c(c1-c1ccc(C)cc1)CN(C(=O)OCc1ccccc1)CC2 to produce COC(=O)C(OC(C)(C)C)c1c(C)nc2c(c1-c1ccc(C)cc1)CNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.