Task: Answer the multiple-choice question.
Query: Which compound exhibits a 18.901\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CCc1cc2ccc(OC)cc2nc1SCC(=O)NNC(=O)c1ccco1
b O=C(NCNC(=O)c1ccccc1)c1ccccc1
c N/C(=N\OC(=O)COc1cc(Cl)c(Cl)cc1Cl)c1ccccn1
d O=C1N/C(=C/c2ccc(Br)s2)C(=O)N1c1ccccc1
Answer: d. O=C1N/C(=C/c2ccc(Br)s2)C(=O)N1c1ccccc1
{#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=C1N/C(=C/c2ccc(Br)s2)C(=O)N1c1ccccc1
O=C1N/C(=C/c2ccc(Br)s2)C(=O)N1c1ccccc1
(5E)-5-[(5-bromothiophen-2-yl)methylidene]-3-phenylimidazolidine-2,4-dione