Task: Answer the multiple choice question.
Question: Which drug exhibits a -1.249\% 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) O=C1Nc2ccc(Cl)cc2C(=O)C1(F)c1ccccc1
b) Cc1cccc(Cn2c(CN3CCN(Cc4ccccc4)CC3)nc3c2c(=O)[nH]c(=O)n3C)c1
Answer: a. O=C1Nc2ccc(Cl)cc2C(=O)C1(F)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#}
O=C1Nc2ccc(Cl)cc2C(=O)C1(F)c1ccccc1
O=C1Nc2ccc(Cl)cc2C(=O)C1(F)c1ccccc1
6-chloro-3-fluoro-3-phenyl-1H-quinoline-2,4-dione