Using C=C(OCC)c1nc(C(=O)OC)cn1COCC[Si](C)(C)C to produce COC(=O)c1cn(COCC[Si](C)(C)C)c(C(C)=O)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.