Task: Answer the multiple-choice question.
Query: Which drug exhibits a -12.461\% 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 other words.
Options:
a Cc1ccc(Cn2ccc(NC(=O)c3nn(C)cc3[N+](=O)[O-])n2)cc1
b CCN1CCN(C(=O)N(Cc2ccc(Cl)cc2)S(=O)(=O)c2ccc(C)cc2)CC1
c CCOc1ccc(C(=O)OCC(=O)Nc2ccc3c(c2)OCCO3)cc1OC
d COc1ccc(CC(=O)Nc2ccc(N3CCN(c4ccc(OC)cc4)CC3)c(C#N)c2)cc1
Answer: b. CCN1CCN(C(=O)N(Cc2ccc(Cl)cc2)S(=O)(=O)c2ccc(C)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#}
CCN1CCN(C(=O)N(Cc2ccc(Cl)cc2)S(=O)(=O)c2ccc(C)cc2)CC1
CCN1CCN(C(=O)N(Cc2ccc(Cl)cc2)S(=O)(=O)c2ccc(C)cc2)CC1
N-[(4-chlorophenyl)methyl]-4-ethyl-N-(4-methylphenyl)sulfonylpiperazine-1-carboxamide