Task: Answer the multiple-choice question.
Query: Which compound has a 6.330\% 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. CC(=O)NC(CCS(C)(=O)=O)C(=O)Nc1c(C)cccc1C
b. CCCCCCNS(=O)(=O)c1ccccc1Br
c. Cc1sc2nc(COC(=O)c3cccc(S(=O)(=O)N(C)c4ccccc4)c3)[nH]c(=O)c2c1C
d. CCN(CCNC(=O)C1CCN(Cc2nc(-c3ccc(Cl)cc3)oc2C)CC1)c1ccccc1
Answer: a. CC(=O)NC(CCS(C)(=O)=O)C(=O)Nc1c(C)cccc1C
{#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#}
2-acetamido-N-(2,6-dimethylphenyl)-4-methylsulfonylbutanamide