Task: Answer the multiple choice question.
Query: Which compound exhibits a -64.644% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(CN1CCN(C(=O)c2ccccc2F)CC1)Nc1ccc(Br)cc1
b: CCn1cc([N+](=O)[O-])c(C(=O)N2N=C(c3cccc4ccccc34)CC2c2ccccc2O)n1
Answer: a. O=C(CN1CCN(C(=O)c2ccccc2F)CC1)Nc1ccc(Br)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(CN1CCN(C(=O)c2ccccc2F)CC1)Nc1ccc(Br)cc1
O=C(CN1CCN(C(=O)c2ccccc2F)CC1)Nc1ccc(Br)cc1
N-(4-bromophenyl)-2-[4-(2-fluorobenzoyl)piperazin-1-yl]acetamide