Using COC(CNC(=O)c1ccc2c(c1)nc(Nc1nc3ccc(Cl)cc3s1)n2C)OC to produce Cn1c(Nc2nc3ccc(Cl)cc3s2)nc2cc(C(=O)NCC=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.