Task: Answer the multiple choice question.
Query: Which drug exhibits a 16.108\% 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 COc1ccc(C(=O)NNc2cc(C)nc(NNC(=O)c3ccc(OC)cc3)n2)cc1
b CCCCn1c(SCC(=O)N2CCCC2)nnc1-c1ccccc1
Answer: b. CCCCn1c(SCC(=O)N2CCCC2)nnc1-c1ccccc1
{#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#}
2-[(4-butyl-5-phenyl-1,2,4-triazol-3-yl)sulfanyl]-1-pyrrolidin-1-ylethanone