Using CS(=O)(=O)N=C=O, CC(C)(C)OC(=O)N[C@H]1CNC1=O to produce CC(C)(C)OC(=O)N[C@H]1CN(C(=O)NS(C)(=O)=O)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.