Task: Answer the MCQ question.
Query: Which compound has a 13.935\% 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(O)Cn1cc(C(=S)N2CCCCC2)c2ccccc21
[b] CNC(=O)Nc1nnc(C(C)(C)C)s1
Answer: b. CNC(=O)Nc1nnc(C(C)(C)C)s1
{#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-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-3-methylurea