Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 0.642\% 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. CCN1CCN(C(c2cccs2)C(C)NS(=O)(=O)c2ccccc2)CC1
b. S=C(NCC1CCCCC1)Nc1cccnc1
Answer: b. S=C(NCC1CCCCC1)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#}
S=C(NCC1CCCCC1)Nc1cccnc1
S=C(NCC1CCCCC1)Nc1cccnc1
1-(cyclohexylmethyl)-3-pyridin-3-ylthiourea