Task: Answer the multiple choice question.
Question: Which drug has a -15.811\% 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 other words.
Options:
a. O=C(N1CCOCC1)N1CCN(S(=O)(=O)N2CCOCC2)CC1
b. CCCCN(C)CCn1c(=S)[nH]c2ncccc2c1=O
Answer: b. CCCCN(C)CCn1c(=S)[nH]c2ncccc2c1=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#}
CCCCN(C)CCn1c(=S)[nH]c2ncccc2c1=O
CCCCN(C)CCn1c(=S)[nH]c2ncccc2c1=O
3-[2-[butyl(methyl)amino]ethyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one