Task: Answer the multiple-choice question.
Question: Which compound exhibits a -3.272\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CC1CCN(C(=O)CSc2nnc(Cn3c(=O)sc4ccccc43)n2C)CC1
[b] CC1CCN(c2c(NCc3ccc(C(=O)N4c5ccccc5CC4C)cc3)c(=O)c2=O)CC1
Answer: b. CC1CCN(c2c(NCc3ccc(C(=O)N4c5ccccc5CC4C)cc3)c(=O)c2=O)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#}
3-[[4-(2-methyl-2,3-dihydro-1H-indole-1-carbonyl)phenyl]methylamino]-4-(4-methylpiperidin-1-yl)cyclobut-3-ene-1,2-dione