Task: Answer the MCQ question.
Question: Which drug exhibits a 3.873\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(CNC(=O)c1cccc(Br)c1)N/N=C/c1cn[nH]c1-c1ccccc1
b: O=C(c1ccc(N2CCCC2=O)cc1)N1CCN(c2ccccc2F)CC1
Answer: a. O=C(CNC(=O)c1cccc(Br)c1)N/N=C/c1cn[nH]c1-c1ccccc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(CNC(=O)c1cccc(Br)c1)N/N=C/c1cn[nH]c1-c1ccccc1
O=C(CNC(=O)c1cccc(Br)c1)N/N=C/c1cn[nH]c1-c1ccccc1
3-bromo-N-[2-oxo-2-[(2E)-2-[(5-phenyl-1H-pyrazol-4-yl)methylidene]hydrazinyl]ethyl]benzamide