Task: Answer the multiple choice question.
Query: Which drug exhibits a 0.239\% 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] CCCCOc1ccc(NC(=O)CSc2cccc3cccnc23)cc1
[b] OCCNc1nc(Nc2cc(Cl)ccc2OC2CCCC2)nc(N2CCCC2)n1
Answer: a. CCCCOc1ccc(NC(=O)CSc2cccc3cccnc23)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#}
CCCCOc1ccc(NC(=O)CSc2cccc3cccnc23)cc1
CCCCOc1ccc(NC(=O)CSc2cccc3cccnc23)cc1
N-(4-butoxyphenyl)-2-quinolin-8-ylsulfanylacetamide