Using CC(C)(C)OC(=O)N1CCC(c2nc(CNc3ccc(S(C)(=O)=O)cc3)cs2)CC1, CI to produce CN(Cc1csc(C2CCN(C(=O)OC(C)(C)C)CC2)n1)c1ccc(S(C)(=O)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.