Using CC(C)OC(=O)OCCl, Cn1cnnc1S[C@H]1Cc2cccc(C(=O)O)c2OB1O to produce CC(C)OC(=O)OCOC(=O)c1cccc2c1OB(O)[C@@H](Sc1nncn1C)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.