Task: Answer the multiple-choice question.
Question: Which drug exhibits a -1.654\% 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] O=C(NCCc1c[nH]c2ccccc12)C1CCC(Cn2c(=S)[nH]c3ccccc3c2=O)CC1
[b] O=C(Nc1nc(-c2ccccc2)cs1)C1CCCCN1S(=O)(=O)c1ccccc1
Answer: a. O=C(NCCc1c[nH]c2ccccc12)C1CCC(Cn2c(=S)[nH]c3ccccc3c2=O)CC1
{#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(NCCc1c[nH]c2ccccc12)C1CCC(Cn2c(=S)[nH]c3ccccc3c2=O)CC1
O=C(NCCc1c[nH]c2ccccc12)C1CCC(Cn2c(=S)[nH]c3ccccc3c2=O)CC1
N-[2-(1H-indol-3-yl)ethyl]-4-[(4-oxo-2-sulfanylidene-1H-quinazolin-3-yl)methyl]cyclohexane-1-carboxamide