Task: Answer the multiple choice question.
Query: Which compound has a 9.808\% 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, or c without using any other words.
Options:
a) CCn1c(N)c(Br)c(=O)[nH]c1=O
b) O=C(Nc1nccs1)c1ccc(Br)c(S(=O)(=O)N2CCCC2)c1
c) CC(=O)Nc1ccc(S(=O)(=O)N2CCN(CCN3CCOCC3)CC2)cc1Cl
Answer: a. CCn1c(N)c(Br)c(=O)[nH]c1=O
{#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#}
CCn1c(N)c(Br)c(=O)[nH]c1=O
CCn1c(N)c(Br)c(=O)[nH]c1=O
6-amino-5-bromo-1-ethylpyrimidine-2,4-dione