Using C=C(C(=O)OCC)c1ccc(NC(=O)OC(C)(C)C)cc1CN(C)C(=O)OC(C)(C)C, C[S+](C)(C)=O to produce CCOC(=O)C1(c2ccc(NC(=O)OC(C)(C)C)cc2CN(C)C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.