Task: Answer the multiple-choice question.
Question: Which compound has a 13.439\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a Cn1nnnc1Sc1ncnc2scc(-c3ccccc3Br)c12
b O=c1nc(-c2ccccc2)c(-c2ccccc2)n[nH]1
c Cc1ccc(NC(=O)CCNS(=O)(=O)c2ccc3c(c2)oc(=O)n3C)c(C)c1
d O=[N+]([O-])c1cccc(CN(CCO)Cc2ccccc2)c1
Answer: b. O=c1nc(-c2ccccc2)c(-c2ccccc2)n[nH]1
{#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#}
O=c1nc(-c2ccccc2)c(-c2ccccc2)n[nH]1
O=c1nc(-c2ccccc2)c(-c2ccccc2)n[nH]1
5,6-diphenyl-2H-1,2,4-triazin-3-one