Task: Answer the MCQ question.
Query: Which compound exhibits a 20.901\% 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 additional words.
Options:
a CCc1nc2nc(C)c(NS(=O)(=O)c3ccc4c(c3)CCCC4)c(=O)n2[nH]1
b NS(=O)(=O)c1ccc(Nc2cccc(C(F)(F)F)c2)nc1
c CCn1c(NC(=O)c2ccco2)c(-c2ccccc2Cl)c(=O)c2ccccc21
d COc1ccc(-c2cc(C)no2)cc1S(=O)(=O)N1CCOc2ccccc21
e CN1CCc2cc3c(c4c2C1Cc1ccccc1-4)OCO3
Answer: c. CCn1c(NC(=O)c2ccco2)c(-c2ccccc2Cl)c(=O)c2ccccc21
{#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#}
CCn1c(NC(=O)c2ccco2)c(-c2ccccc2Cl)c(=O)c2ccccc21
CCn1c(NC(=O)c2ccco2)c(-c2ccccc2Cl)c(=O)c2ccccc21
N-[3-(2-chlorophenyl)-1-ethyl-4-oxoquinolin-2-yl]furan-2-carboxamide