Using CN1CCn2nc(C(=O)N3CCc4ccccc4C3)c(OCc3ccccc3)c2C1=O to produce CN1CCn2nc(C(=O)N3CCc4ccccc4C3)c(O)c2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.