Using O=C1CCc2cc(C(=O)N3CCC4(CC3)OCCO4)ccc2N1 to produce O=C1CCN(C(=O)c2ccc3c(c2)CCC(=O)N3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.