Task: Answer the multiple choice question.
Question: Which drug exhibits a 20.449% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1cccc(/C=N/NC(=O)CCC(=O)Nc2ccc(Br)cc2)c1
(b) Cc1ccc(C(=O)NC(=S)Nc2ccc(N3CCN(C(=O)c4ccco4)CC3)cc2)cc1
Answer: a. COc1cccc(/C=N/NC(=O)CCC(=O)Nc2ccc(Br)cc2)c1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1cccc(/C=N/NC(=O)CCC(=O)Nc2ccc(Br)cc2)c1
COc1cccc(/C=N/NC(=O)CCC(=O)Nc2ccc(Br)cc2)c1
N-(4-bromophenyl)-N'-[(E)-(5-methoxyphenyl)methylideneamino]butanediamide