Using C=CCOC(=O)c1ccc2c(c1)nc(C)n2C1CCN(C(=O)OC(C)(C)C)CC1 to produce C=CCOC(=O)c1ccc2c(c1)nc(C)n2C1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.