Task: Answer the MCQ question.
Question: Which compound exhibits a 21.843\% 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, b, c, d, or e without using any other words.
Options:
(a) COc1ccc(CCN(C)CCC(=O)Nc2c(C)cc(C)cc2C)cc1OC
(b) Cc1ccc(C(=O)Nc2nc3ccccc3n3nnnc23)cc1
(c) COc1ccc(-n2cnnc2SCc2ncc(-c3ccccc3)o2)cc1
(d) CCCCN(CC)C(=O)c1ccc(Cl)cc1
(e) O=C(CN(Cc1ccco1)C(=O)c1cc(=O)[nH]c2ccccc12)Nc1ccccc1Br
Answer: d. CCCCN(CC)C(=O)c1ccc(Cl)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#}
N-butyl-4-chloro-N-ethylbenzamide