Task: Answer the MCQ question.
Question: Which compound has a 10.421\% 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)N1[C@H](Cc2ccccc2)C=C[C@]1(C)C(=O)O
b) CC1(C)CC(NC(=O)c2ccc(Cl)c(Cl)c2)CC(C)(C)N1
Answer: a. COC(=O)N1[C@H](Cc2ccccc2)C=C[C@]1(C)C(=O)O
{#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#}
COC(=O)N1[C@H](Cc2ccccc2)C=C[C@]1(C)C(=O)O
COC(=O)N1[C@H](Cc2ccccc2)C=C[C@]1(C)C(=O)O
(2R,5R)-2-benzyl-1-methoxycarbonyl-5-methyl-2H-pyrrole-5-carboxylic acid