Using O=C1CCCc2ccc(Cl)nc21, CC1(C)OB(c2cnc(-c3cccnc3)s2)OC1(C)C to produce O=C1CCCc2ccc(-c3cnc(-c4cccnc4)s3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.