Task: Answer the multiple-choice question.
Question: Which drug has a -0.263\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(Nc1ccccn1)c1ccc(Cl)c([N+](=O)[O-])c1
b. S=C1NC(c2ccccc2)=NCN1c1ccccc1
c. CCCOC(=O)C1=C(C)NC(=O)NC1c1cccc2ccccc12
d. CCOC(=O)[C@H]1[C@H]2COc3ccccc3[C@@H]2N2C(=O)c3c(C)cc(C)cc3NC(=O)[C@@]12C
Answer: b. S=C1NC(c2ccccc2)=NCN1c1ccccc1
{#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#}
S=C1NC(c2ccccc2)=NCN1c1ccccc1
S=C1NC(c2ccccc2)=NCN1c1ccccc1
3,6-diphenyl-1,4-dihydro-1,3,5-triazine-2-thione