Problem statement: Answer the multiple-choice question.
Query: Which drug has a 4.559\% 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) CCC(=O)N1CCN(c2ccccc2NC(=O)COc2ccccc2Cl)CC1
(b) CC(C)Oc1ccc(C(=O)Nc2ccc(N3CCCC3)cc2)cc1
Answer: a. CCC(=O)N1CCN(c2ccccc2NC(=O)COc2ccccc2Cl)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#}
2-(2-chlorophenoxy)-N-[2-(4-propanoylpiperazin-1-yl)phenyl]acetamide