Problem statement: Answer the multiple-choice question.
Question: Which drug has a 4.461\% 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] CCN(CC)CCCn1c(=S)[nH]c2ncccc2c1=O
[b] COc1cccc(-c2nn(C)c3sc(C(=O)N4CCOCC4)cc23)c1
Answer: a. CCN(CC)CCCn1c(=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#}
CCN(CC)CCCn1c(=S)[nH]c2ncccc2c1=O
CCN(CC)CCCn1c(=S)[nH]c2ncccc2c1=O
3-[3-(diethylamino)propyl]-2-sulfanylidene-1H-pyrido[2,3-d]pyrimidin-4-one