Task: Answer the multiple-choice question.
Question: Which compound has a 2.748\% 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 or b without using any other words.
Options:
[a] COC(=O)C1=C(c2ccc(-c3ccccc3)c(F)c2)C[C@@H]2CC[C@H]1N2C(=O)NCCc1ccccc1
[b] CCCCNC(=S)Nc1ccc(Cl)cc1
Answer: b. CCCCNC(=S)Nc1ccc(Cl)cc1
{#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#}
CCCCNC(=S)Nc1ccc(Cl)cc1
CCCCNC(=S)Nc1ccc(Cl)cc1
1-butyl-3-(4-chlorophenyl)thiourea