Using C[Si](C)(C)[N-][Si](C)(C)C, CCOC(=O)c1csc2c1CCCC2=O to produce CCOC(=O)c1csc2c1CCC(C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.