Task: Answer the multiple-choice question.
Question: Which compound exhibits a 1.953\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: O=C(N/N=C(\CC(=O)c1cccs1)C(F)(F)F)c1ccncc1
b: CN1/C(=C\C(=O)c2cncc(Br)c2)C(C)(C)c2ccccc21
c: CCOC(=O)C(=O)Nc1ccccc1C(=O)NC(C)C
Answer: b. CN1/C(=C\C(=O)c2cncc(Br)c2)C(C)(C)c2ccccc21
{#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#}
CN1/C(=C\C(=O)c2cncc(Br)c2)C(C)(C)c2ccccc21
CN1/C(=C\C(=O)c2cncc(Br)c2)C(C)(C)c2ccccc21
(2Z)-1-(5-bromopyridin-3-yl)-2-(1,3,3-trimethylindol-2-ylidene)ethanone