Using C[Si](C)(C)CCOCn1ccc2c(Cl)c(C=O)cnc21, CC[Mg]Br to produce CCC(O)c1cnc2c(ccn2COCC[Si](C)(C)C)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.