Problem statement: Answer the MCQ question.
Query: Which compound exhibits a -2.291\% 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, or d without using any additional words.
Options:
[a] O=C(O)CC1CCC(=C(Cl)Cl)C1
[b] Cc1c(N=Nc2c(O)n(Cc3ccccc3)c(=O)[nH]c2=O)c(=O)n(-c2ccccc2)n1C
[c] CCCCN(CC)C(=O)Cn1ncc2c3ccccc3n(CCC)c2c1=O
[d] CC(=O)c1ccc(NC(=O)C(C)OC(=O)C2CC(=O)N(c3ccc4c(c3)OCCO4)C2)cc1
Answer: c. CCCCN(CC)C(=O)Cn1ncc2c3ccccc3n(CCC)c2c1=O
{#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#}
CCCCN(CC)C(=O)Cn1ncc2c3ccccc3n(CCC)c2c1=O
CCCCN(CC)C(=O)Cn1ncc2c3ccccc3n(CCC)c2c1=O
N-butyl-N-ethyl-2-(4-oxo-5-propylpyridazino[4,5-b]indol-3-yl)acetamide