Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -8.843\% 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) COc1ccccc1N1C(=O)CCC1(C#N)c1ccccc1
(b) Cc1c(OC(=O)CNC(=O)OC(C)(C)C)ccc2c3c(c(=O)oc12)CCC3
Answer: a. COc1ccccc1N1C(=O)CCC1(C#N)c1ccccc1
{#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#}
COc1ccccc1N1C(=O)CCC1(C#N)c1ccccc1
COc1ccccc1N1C(=O)CCC1(C#N)c1ccccc1
1-(2-methoxyphenyl)-5-oxo-2-phenylpyrrolidine-2-carbonitrile