Task: Answer the MCQ question.
Question: Which compound has a 3.993\% 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 other words.
Options:
a O=c1c2ccccc2nc2sc(Nc3cccc(Cl)c3)nn12
b O=C(CSc1nc(=O)n2ccccc2n1)Nc1ccc2c(c1)OCCO2
Answer: a. O=c1c2ccccc2nc2sc(Nc3cccc(Cl)c3)nn12
{#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#}
O=c1c2ccccc2nc2sc(Nc3cccc(Cl)c3)nn12
O=c1c2ccccc2nc2sc(Nc3cccc(Cl)c3)nn12
2-(3-chloroanilino)-[1,3,4]thiadiazolo[2,3-b]quinazolin-5-one