Task: Answer the multiple-choice question.
Question: Which drug exhibits a -19.187\% 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: O=C(Cn1cnc2c(nnn2Cc2ccc(F)cc2)c1=O)NC1CCCC1
b: CCOC(=O)N1CCN(C(=O)CC(C(=O)N2CCc3ccccc32)n2ccnc2)CC1
Answer: b. CCOC(=O)N1CCN(C(=O)CC(C(=O)N2CCc3ccccc32)n2ccnc2)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)N1CCN(C(=O)CC(C(=O)N2CCc3ccccc32)n2ccnc2)CC1
CCOC(=O)N1CCN(C(=O)CC(C(=O)N2CCc3ccccc32)n2ccnc2)CC1
ethyl 4-[4-(2,3-dihydroindol-1-yl)-3-imidazol-1-yl-4-oxobutanoyl]piperazine-1-carboxylate