Task: Answer the multiple-choice question.
Question: Which compound has a 8.383\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(CNC(=O)c1ccncc1)N/N=C/c1cc(Br)ccc1OCc1ccccc1
[b] CCc1onc(C)c1C(=O)O
Answer: a. O=C(CNC(=O)c1ccncc1)N/N=C/c1cc(Br)ccc1OCc1ccccc1
{#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)c1ccncc1)N/N=C/c1cc(Br)ccc1OCc1ccccc1
O=C(CNC(=O)c1ccncc1)N/N=C/c1cc(Br)ccc1OCc1ccccc1
N-[2-[(2E)-2-[(5-bromo-2-phenylmethoxyphenyl)methylidene]hydrazinyl]-2-oxoethyl]pyridine-4-carboxamide