SM-164 (hydrochloride)

SM-164 hydrochloride is a cell-permeable Smac mimetic compound. SM-164 binds to XIAP protein containing both the BIR2 and BIR3 domains with an IC50 value of 1.39 nM and functions as an extremely potent antagonist of XIAP.

C[C@H](NC)C(N[C@H]1CCCC[C@](CC[C@H]2C(N[C@@H](C3=CC=CC=C3)C4=CN(CCCCC5=CC=C(CCCCN6N=NC([C@@H](NC([C@@H]7CC[C@@](CCCC[C@@H]8NC([C@@H](NC)C)=O)([H])N7C8=O)=O)C9=CC=CC=C9)=C6)C=C5)N=N4)=O)([H])N2C1=O)=O.Cl

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