Task: Answer the multiple-choice question.
Query: Which compound exhibits a 11.386\% 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(N/N=C/c1c[nH]c2ccccc12)c1cc(Br)ccc1O
(b) CCN(CC)S(=O)(=O)c1cccc(-c2nnc(SCC#N)n2Cc2ccccc2)c1
Answer: a. O=C(N/N=C/c1c[nH]c2ccccc12)c1cc(Br)ccc1O
{#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(N/N=C/c1c[nH]c2ccccc12)c1cc(Br)ccc1O
O=C(N/N=C/c1c[nH]c2ccccc12)c1cc(Br)ccc1O
5-bromo-2-hydroxy-N-[(E)-1H-indol-3-ylmethylideneamino]benzamide