Using COC(CCn1nc(C)c(=O)n(C(=O)c2ccccc2)c1=O)OC to produce Cc1nn(CCC=O)c(=O)n(C(=O)c2ccccc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.