Problem statement: Answer the multiple-choice question.
Question: Which drug has a 21.091\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCCCCCNc1c([N+](=O)[O-])cc(C)cc1[N+](=O)[O-]
(b) CN1C(=O)C(Cc2cnc[nH]2)NC1=S
Answer: b. CN1C(=O)C(Cc2cnc[nH]2)NC1=S
{#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#}
CN1C(=O)C(Cc2cnc[nH]2)NC1=S
CN1C(=O)C(Cc2cnc[nH]2)NC1=S
5-(1H-imidazol-5-ylmethyl)-3-methyl-2-sulfanylideneimidazolidin-4-one