Task: Answer the multiple-choice question.
Query: Which compound exhibits a 13.216\% 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. COc1cc(OC)c(OC)cc1CN1CCc2ccccc2C1
b. CCCn1c(-c2ccccc2)cc(SC)c(C#N)c1=O
Answer: a. COc1cc(OC)c(OC)cc1CN1CCc2ccccc2C1
{#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#}
COc1cc(OC)c(OC)cc1CN1CCc2ccccc2C1
COc1cc(OC)c(OC)cc1CN1CCc2ccccc2C1
2-[(2,4,5-trimethoxyphenyl)methyl]-3,4-dihydro-1H-isoquinoline