Task: Answer the multiple-choice question.
Question: Which compound has a 0.250\% human ether-à-go-go related gene (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 COc1ccc(S(=O)(=O)N2CCN(CCOc3ccc(Br)cc3)CC2)cc1OC
b CN1CCN(C(=S)C(=O)NCc2ccccc2)CC1
c C=CCN(CC=C)CCOc1ccc(C)cc1[N+](=O)[O-].O=C(O)C(=O)O
Answer: a. COc1ccc(S(=O)(=O)N2CCN(CCOc3ccc(Br)cc3)CC2)cc1OC
{#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#}
COc1ccc(S(=O)(=O)N2CCN(CCOc3ccc(Br)cc3)CC2)cc1OC
COc1ccc(S(=O)(=O)N2CCN(CCOc3ccc(Br)cc3)CC2)cc1OC
1-[2-(4-bromophenoxy)ethyl]-4-(3,4-dimethoxyphenyl)sulfonylpiperazine