Using CCC1(CC)OC(=O)N(C)c2ccc(N)cc21, OB(O)c1cccc(Cl)c1 to produce CCC1(CC)OC(=O)N(C)c2ccc(Nc3cccc(Cl)c3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.