Task: Answer the multiple-choice question.
Query: Which compound has a 5.547\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] COCC(=O)Nc1cccc2ccccc12
[b] Cc1ccc(C2=NCCNC2=O)c(C)c1
[c] Cc1ccc(N(C(C)C(=O)Nc2ccc(S(=O)(=O)N3CCOCC3)cc2)S(C)(=O)=O)cc1C
Answer: b. Cc1ccc(C2=NCCNC2=O)c(C)c1
{#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#}
5-(2,4-dimethylphenyl)-2,3-dihydro-1H-pyrazin-6-one