Task: Answer the multiple choice question.
Question: Which compound exhibits a 15.438\% 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 COC(=O)c1cc(C)sc1NC(=O)c1cccnc1
b Cc1ccccc1Cn1cc(NC(=O)c2noc3c2CC(C(C)(C)C)CC3)cn1
Answer: a. COC(=O)c1cc(C)sc1NC(=O)c1cccnc1
{#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#}
COC(=O)c1cc(C)sc1NC(=O)c1cccnc1
COC(=O)c1cc(C)sc1NC(=O)c1cccnc1
methyl 5-methyl-2-(pyridine-3-carbonylamino)thiophene-3-carboxylate