Using O=C(Nc1ncc(-c2ccccc2)cn1)Oc1ccccc1, O=C1OC2(CCNCC2)c2cccc(F)c21 to produce O=C1OC2(CCN(C(=O)Nc3ncc(-c4ccccc4)cn3)CC2)c2cccc(F)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.