Task: Answer the multiple choice question.
Question: Which compound has a 16.679\% 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: Cc1ccc(N2CCN(c3ccc(C)cc3)C(CC(=O)O)C2=O)cc1
b: Fc1cccc(CN2CCN(c3ccc(Cl)cc3)CC2)c1
Answer: b. Fc1cccc(CN2CCN(c3ccc(Cl)cc3)CC2)c1
{#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#}
Fc1cccc(CN2CCN(c3ccc(Cl)cc3)CC2)c1
Fc1cccc(CN2CCN(c3ccc(Cl)cc3)CC2)c1
1-(4-chlorophenyl)-4-[(5-fluorophenyl)methyl]piperazine