Task: Answer the multiple-choice question.
Question: Which compound exhibits a 18.661\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] CCSc1nc2ccccc2n1C(=O)c1ccc(S(=O)(=O)N2CCCCCC2)cc1
[b] CCOc1ccccc1NC(=O)CN(c1ccc(C)cc1)S(=O)(=O)c1c(C)n[nH]c1C
[c] COc1ccc(N2CC(O)=C(c3nc(-c4ccc(F)cc4)cs3)C2=N)cc1
[d] O=C(Nc1cccc([N+](=O)[O-])c1)C(=O)N1CCCCC1
[e] CCOC(=O)C1=C(C)OC(N)=C(C#N)C1c1cccs1
Answer: b. CCOc1ccccc1NC(=O)CN(c1ccc(C)cc1)S(=O)(=O)c1c(C)n[nH]c1C
{#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#}
CCOc1ccccc1NC(=O)CN(c1ccc(C)cc1)S(=O)(=O)c1c(C)n[nH]c1C
CCOc1ccccc1NC(=O)CN(c1ccc(C)cc1)S(=O)(=O)c1c(C)n[nH]c1C
2-[N-[(3,5-dimethyl-1H-pyrazol-4-yl)sulfonyl]-4-methylanilino]-N-(2-ethoxyphenyl)acetamide