Task: Answer the multiple-choice question.
Query: Which drug exhibits a 4.814\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) Cc1cnccc1CN(C)C(=O)CC1C(=O)NCCN1CC1CCCCC1
b) COc1cccc(Cn2cnc3c(sc4nc(C)cc(C)c43)c2=O)c1
Answer: a. Cc1cnccc1CN(C)C(=O)CC1C(=O)NCCN1CC1CCCCC1
{#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#}
Cc1cnccc1CN(C)C(=O)CC1C(=O)NCCN1CC1CCCCC1
Cc1cnccc1CN(C)C(=O)CC1C(=O)NCCN1CC1CCCCC1
2-[1-(cyclohexylmethyl)-3-oxopiperazin-2-yl]-N-methyl-N-[(5-methylpyridin-4-yl)methyl]acetamide