Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 5.609\% 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) Cl.O=C(CN1CCN(c2ncccn2)CC1)Nc1ccccc1-n1cccc1
(b) O=C1COc2ccc(C(=O)COC(=O)c3cccnc3Cl)cc2N1
Answer: a. Cl.O=C(CN1CCN(c2ncccn2)CC1)Nc1ccccc1-n1cccc1
{#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#}
Cl.O=C(CN1CCN(c2ncccn2)CC1)Nc1ccccc1-n1cccc1
Cl.O=C(CN1CCN(c2ncccn2)CC1)Nc1ccccc1-n1cccc1
2-(4-pyrimidin-2-ylpiperazin-1-yl)-N-(2-pyrrol-1-ylphenyl)acetamide;hydrochloride