Using Cc1cc2c(CO)cccn2c1C, COC(=O)CCn1c(=O)[nH]c2ccccc21 to produce COC(=O)CCn1c(=O)n(Cc2cccn3c(C)c(C)cc23)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.