Problem statement: Answer the multiple choice question.
Question: Which drug has a 18.004\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(O)c1cn(CCOc2ccccc2Cl)c2ccccc12
b: O=C(Nc1ccc(Br)cc1)N1CCc2ccccc2C1
c: O=C1Nc2ccc([N+](=O)[O-])cc2OC1CCN1CCN(c2ccccc2)CC1
Answer: b. O=C(Nc1ccc(Br)cc1)N1CCc2ccccc2C1
{#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(Nc1ccc(Br)cc1)N1CCc2ccccc2C1
O=C(Nc1ccc(Br)cc1)N1CCc2ccccc2C1
N-(4-bromophenyl)-3,4-dihydro-1H-isoquinoline-2-carboxamide