Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -19.914\% 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: CC(C)=CCN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
b: O=C(Cc1ccsc1-c1ccccc1)NO
Answer: a. CC(C)=CCN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
{#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#}
CC(C)=CCN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
CC(C)=CCN1CCN(Cc2cccn2-c2ccccn2)CC1CCO
2-[1-(3-methylbut-2-enyl)-4-[(1-pyridin-2-ylpyrrol-2-yl)methyl]piperazin-2-yl]ethanol