Using Cc1cc2c(s1)Nc1cc(F)c(F)cc1N=C2N, COCCC1CNCCN1 to produce COCC[C@H]1CN(C2=Nc3cc(F)c(F)cc3Nc3sc(C)cc32)CCN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.