Using CI, O=c1[nH]c2ccccc2n1C1CCN(C2(c3ccccc3)CCCCCC2)CC1 to produce Cn1c(=O)n(C2CCN(C3(c4ccccc4)CCCCCC3)CC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.