Using CCOC(=O)CCc1cc2c(s1)C=Cc1ccccc1C2=C1CCN(C(=O)OC(C)(C)C)CC1 to produce CCOC(=O)CCc1cc2c(s1)C=Cc1ccccc1C2=C1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.