Task: Answer the multiple-choice question.
Query: Which drug has a 4.319\% 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: CCOc1ccccc1CNc1ccc(N2CCOCC2)c(C(=O)O)c1
b: CCCC(=O)N1CCN(c2nc3ccc(CC)cc3s2)CC1
Answer: b. CCCC(=O)N1CCN(c2nc3ccc(CC)cc3s2)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#}
CCCC(=O)N1CCN(c2nc3ccc(CC)cc3s2)CC1
CCCC(=O)N1CCN(c2nc3ccc(CC)cc3s2)CC1
1-[4-(6-ethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]butan-1-one