Task: Answer the multiple-choice question.
Query: Which drug exhibits a 1.558\% 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.) O=c1nc(N2CCCCCC2)nc(N2CCCCCC2)[nH]1
b.) S=C(Nc1ccc(Cl)c(Cl)c1)N1CCN(c2ccccn2)CC1
Answer: a. O=c1nc(N2CCCCCC2)nc(N2CCCCCC2)[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(N2CCCCCC2)nc(N2CCCCCC2)[nH]1
O=c1nc(N2CCCCCC2)nc(N2CCCCCC2)[nH]1
4,6-bis(azepan-1-yl)-1H-1,3,5-triazin-2-one