Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 7.519\% 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 additional words.
Options:
a.) Nc1nc(N)c2c(n1)CCCC2
b.) O=C1CSC(c2cccc([N+](=O)[O-])c2)N1c1c(F)cccc1F
Answer: a. Nc1nc(N)c2c(n1)CCCC2
{#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#}
Nc1nc(N)c2c(n1)CCCC2
Nc1nc(N)c2c(n1)CCCC2
5,6,7,8-tetrahydroquinazoline-2,4-diamine