Task: Answer the MCQ question.
Query: Which compound has a 8.971\% 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 other words.
Options:
a) O=c1c(N2CCOCC2)c(N2CCOCC2)c1=O
b) CCN(CC(=O)NC(=O)NCc1ccccc1)Cc1ccccc1
Answer: a. O=c1c(N2CCOCC2)c(N2CCOCC2)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#}
O=c1c(N2CCOCC2)c(N2CCOCC2)c1=O
O=c1c(N2CCOCC2)c(N2CCOCC2)c1=O
3,4-dimorpholin-4-ylcyclobut-3-ene-1,2-dione