Problem statement: Answer the MCQ question.
Question: Which drug exhibits a -20.308\% 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) CCc1cc2cc(C(=O)Nc3ccccc3F)sc2s1
b) CCOc1ccc(C(=O)N2CCN(c3cccc(Cl)c3)CC2)cc1
Answer: b. CCOc1ccc(C(=O)N2CCN(c3cccc(Cl)c3)CC2)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#}
[4-(3-chlorophenyl)piperazin-1-yl]-(4-ethoxyphenyl)methanone