Task: Answer the MCQ question.
Question: Which compound exhibits a 1.416\% 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) CN(C)c1cc[n+](Cc2c(Cl)cccc2Cl)cc1.[Cl-]
b) COc1ccc2[nH]c3c(=O)n(N)c(C)nc3c2c1
Answer: b. COc1ccc2[nH]c3c(=O)n(N)c(C)nc3c2c1
{#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#}
COc1ccc2[nH]c3c(=O)n(N)c(C)nc3c2c1
COc1ccc2[nH]c3c(=O)n(N)c(C)nc3c2c1
3-amino-8-methoxy-2-methyl-5H-pyrimido[5,4-b]indol-4-one