Using O=C1CCn2c3c(c4cccc1c42)CCN(C(=O)c1ccccc1)CC3 to produce O=C(c1ccccc1)N1CCC2c3cccc4c3N(CCC4O)C2CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.