Using COC1CN(C(=O)c2coc(N3CC(O[Si](c4ccccc4)(c4ccccc4)C(C)(C)C)C3)n2)C1 to produce COC1CN(C(=O)c2coc(N3CC(O)C3)n2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.