Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 12.386\% 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: COC(=O)C1CCN(C(=O)c2ccc(Cl)c(S(=O)(=O)NCc3cccnc3)c2)CC1
b: COc1ccccc1C(=O)N1CCN(c2cccc(Cl)c2)CC1
Answer: b. COc1ccccc1C(=O)N1CCN(c2cccc(Cl)c2)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]-(2-methoxyphenyl)methanone