Task: Answer the MCQ question.
Query: Which drug exhibits a -1.640\% 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] O=C(CSc1nnc(-c2cccc(Cl)c2)o1)Nc1ccc2c(c1)OCCO2
[b] O=C(CCN1C(=O)c2ccccc2C1=O)Nc1cccnc1
Answer: b. O=C(CCN1C(=O)c2ccccc2C1=O)Nc1cccnc1
{#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#}
O=C(CCN1C(=O)c2ccccc2C1=O)Nc1cccnc1
O=C(CCN1C(=O)c2ccccc2C1=O)Nc1cccnc1
3-(1,3-dioxoisoindol-2-yl)-N-pyridin-3-ylpropanamide