Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 0.687\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCNc1nc(N2CCCC2)nc(N2CCCC2)n1
[b] Cc1ccc(-c2c(C(=O)O)c(C(=O)O)c3n2CSC3)cc1
Answer: a. CCNc1nc(N2CCCC2)nc(N2CCCC2)n1
{#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#}
CCNc1nc(N2CCCC2)nc(N2CCCC2)n1
CCNc1nc(N2CCCC2)nc(N2CCCC2)n1
N-ethyl-4,6-dipyrrolidin-1-yl-1,3,5-triazin-2-amine