Using Nc1cnn(CCO)c1, CC(C)(C)OC(=O)N1CC2CC(Nc3nc(Cl)ncc3Cl)CC2C1 to produce CC(C)(C)OC(=O)N1CC2CC(Nc3nc(Nc4cnn(CCO)c4)ncc3Cl)CC2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.