Task: Answer the MCQ question.
Question: Which compound exhibits a 0.553\% 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] Cc1c(NC(=O)Cn2cc([N+](=O)[O-])cn2)c(=O)n(-c2ccccc2)n1C
[b] CCN(Cc1ccccc1)C(=O)c1c[nH]c2ccc(S(=O)(=O)N(C)CCC#N)cc2c1=O
[c] O=c1[nH]c(C2CCN(S(=O)(=O)Cc3ccccc3)CC2)nc2c1nnn2Cc1ccccc1Cl
[d] Cc1ccc2c(Cl)cc(Cl)c(OCC(=O)O)c2n1
Answer: b. CCN(Cc1ccccc1)C(=O)c1c[nH]c2ccc(S(=O)(=O)N(C)CCC#N)cc2c1=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#}
CCN(Cc1ccccc1)C(=O)c1c[nH]c2ccc(S(=O)(=O)N(C)CCC#N)cc2c1=O
CCN(Cc1ccccc1)C(=O)c1c[nH]c2ccc(S(=O)(=O)N(C)CCC#N)cc2c1=O
N-benzyl-6-[2-cyanoethyl(methyl)sulfamoyl]-N-ethyl-4-oxo-1H-quinoline-3-carboxamide