Using COc1ccnc(-c2ccc(Cl)c(N)c2)c1, CC(C)(C)OC(=O)NC(=S)NC(=O)OC(C)(C)C to produce COc1ccnc(-c2ccc(Cl)c(N=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.