Task: Answer the MCQ question.
Question: Which compound exhibits a 6.603\% 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) CC(=O)c1c(N2CCN(C)CC2)[nH]c(-c2ccccc2)nc1=S
b) CCCCn1c(/N=C/c2c[nH]c3ccccc23)nc2ccccc21
Answer: a. CC(=O)c1c(N2CCN(C)CC2)[nH]c(-c2ccccc2)nc1=S
{#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#}
1-[6-(4-methylpiperazin-1-yl)-2-phenyl-4-sulfanylidene-1H-pyrimidin-5-yl]ethanone