Using CCCCn1c(=O)[nH]c(=O)c2[nH]c(Cc3ccc(NC(C)=O)cc3)nc21, CC(C)(C)C(=O)OCCl to produce CCCCn1c(=O)[nH]c(=O)c2c1nc(Cc1ccc(NC(C)=O)cc1)n2COC(=O)C(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.