Using Cc1cccc(N2CCN(CCCC(O)c3ccc4c(c3)CCC(=O)N4)CC2)c1C to produce Cc1cccc(N2CCN(CCC=Cc3ccc4c(c3)CCC(=O)N4)CC2)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.