Using O=c1[nH]c2sc(I)nc2c2ccccc12, CCCCC([SnH3])=C(CCCC)CCCC to produce C=Cc1nc2c([nH]c(=O)c3ccccc32)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.