Using CC[SiH](CC)CC, COc1ccc(OC)c(C2OC(=O)c3c(OC)ccc(C)c32)c1 to produce COc1ccc(OC)c(Cc2cc(C)cc(OC)c2C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.