Using O=C(O)c1ccc(Oc2ccc3c(c2)COB3O)cc1, CN(C)CCO to produce CN(C)CCOC(=O)c1ccc(Oc2ccc3c(c2)COB3O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.