Problem statement: Answer the MCQ question.
Query: Which compound exhibits a -15.548\% 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. CCCCc1nc2cc(N)c(C)nc2n1Cc1ccc(Br)cc1
b. c1ccc(-c2nccc(-c3ccc(-n4cnc5ccccc54)cc3)n2)nc1
Answer: b. c1ccc(-c2nccc(-c3ccc(-n4cnc5ccccc54)cc3)n2)nc1
{#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#}
c1ccc(-c2nccc(-c3ccc(-n4cnc5ccccc54)cc3)n2)nc1
c1ccc(-c2nccc(-c3ccc(-n4cnc5ccccc54)cc3)n2)nc1
1-[4-(2-pyridin-2-ylpyrimidin-4-yl)phenyl]benzimidazole