Using COC(=O)c1ccc(C(=O)Nc2cc3c4c(c2)CCCC4CCC3)cn1 to produce O=C(Nc1cc2c3c(c1)CCCC3CCC2)c1ccc(C(=O)O)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.