Using COC(=O)C=Cc1ccc2c(-c3c(-c4cccc(C)n4)nn4ccccc34)ccnc2c1 to produce COC(=O)CCc1ccc2c(-c3c(-c4cccc(C)n4)nn4ccccc34)ccnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.