Task: Answer the multiple choice question.
Query: Which drug exhibits a 26.374\% 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(COc1ccc(Cl)cc1)NCCCNC(=O)c1cccnc1
[b] Cc1cccc(C)c1N(CC(=O)N1CCN(C)CC1)S(C)(=O)=O
Answer: a. O=C(COc1ccc(Cl)cc1)NCCCNC(=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#}
O=C(COc1ccc(Cl)cc1)NCCCNC(=O)c1cccnc1
O=C(COc1ccc(Cl)cc1)NCCCNC(=O)c1cccnc1
N-[3-[[2-(4-chlorophenoxy)acetyl]amino]propyl]pyridine-3-carboxamide