Using CCCn1c(=O)c2[nH]c(C34CCCC(C=CC(=O)O)(CCC3)C4)nc2n(CCC)c1=O to produce CCCn1c(=O)c2[nH]c(C34CCCC(CCC(=O)O)(CCC3)C4)nc2n(CCC)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.