Task: Answer the MCQ question.
Question: Which drug exhibits a 1.535\% human ether-à-go-go related gene (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) CC(=O)N1CCN(CC(=O)Nc2cc([N+](=O)[O-])ccc2Cl)CC1
(b) CCOC(=O)c1c(C)n(C)c2cc(Br)c(O)c(O)c12
Answer: a. CC(=O)N1CCN(CC(=O)Nc2cc([N+](=O)[O-])ccc2Cl)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#}
CC(=O)N1CCN(CC(=O)Nc2cc([N+](=O)[O-])ccc2Cl)CC1
CC(=O)N1CCN(CC(=O)Nc2cc([N+](=O)[O-])ccc2Cl)CC1
2-(4-acetylpiperazin-1-yl)-N-(2-chloro-5-nitrophenyl)acetamide