Task: Answer the multiple-choice question.
Query: Which compound exhibits a 19.244\% 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, b, c, or d without using any additional words.
Options:
[a] O=C(Nc1c2c(nn1-c1ccc(F)cc1)CS(=O)C2)c1ccc(Br)o1
[b] COc1ccc(NC(=O)Cn2ncn3nc(-c4ccc(OC)cc4)cc3c2=O)cc1
[c] CCOC(=O)CC(=O)CSc1nc(-c2ccccc2)cc(-c2ccc(Cl)cc2)c1C#N
[d] COc1ccc(C2NC(=O)CCC2[N+](=O)[O-])cc1
Answer: d. COc1ccc(C2NC(=O)CCC2[N+](=O)[O-])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#}
COc1ccc(C2NC(=O)CCC2[N+](=O)[O-])cc1
COc1ccc(C2NC(=O)CCC2[N+](=O)[O-])cc1
6-(4-methoxyphenyl)-5-nitropiperidin-2-one