Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 1.421\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a CCOC(=O)c1c(C)[nH]c(C)c1S(=O)(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
b CCOC(=O)N1CCN(Cc2nc3cc(NC(=O)CC)ccc3n2C)CC1
c Cc1cc(N2C(=O)c3ccccc3C2=O)n(C)n1
Answer: a. CCOC(=O)c1c(C)[nH]c(C)c1S(=O)(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)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#}
CCOC(=O)c1c(C)[nH]c(C)c1S(=O)(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
CCOC(=O)c1c(C)[nH]c(C)c1S(=O)(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
ethyl 2,5-dimethyl-4-[4-(4-nitrophenyl)piperazin-1-yl]sulfonyl-1H-pyrrole-3-carboxylate