Task: Answer the multiple-choice question.
Question: Which drug exhibits a 16.723\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a CCCCOC(=O)C(C)c1c(C)[nH]c(=S)[nH]c1=O
b C/C(=C/c1oc2ccc(O)cc2c1[N+](=O)[O-])N(C)C
Answer: a. CCCCOC(=O)C(C)c1c(C)[nH]c(=S)[nH]c1=O
{#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#}
CCCCOC(=O)C(C)c1c(C)[nH]c(=S)[nH]c1=O
CCCCOC(=O)C(C)c1c(C)[nH]c(=S)[nH]c1=O
butyl 2-(6-methyl-4-oxo-2-sulfanylidene-1H-pyrimidin-5-yl)propanoate