Task: Answer the multiple-choice question.
Query: Which compound has a 6.658\% 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 additional words.
Options:
a: S=c1[nH]nc(-c2ccccn2)n1/N=C/c1cccs1
b: O=C(N/N=C/c1cc2c(cc1Cl)OCO2)c1cccc(Br)c1
Answer: a. S=c1[nH]nc(-c2ccccn2)n1/N=C/c1cccs1
{#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#}
S=c1[nH]nc(-c2ccccn2)n1/N=C/c1cccs1
S=c1[nH]nc(-c2ccccn2)n1/N=C/c1cccs1
3-pyridin-2-yl-4-[(E)-thiophen-2-ylmethylideneamino]-1H-1,2,4-triazole-5-thione