Using Cn1c(=O)c2[nH]c(CCCC(=O)O)nc2n(C)c1=O, COC(C)(C)OC to produce COC(=O)CCCc1nc2c([nH]1)c(=O)n(C)c(=O)n2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.