Task: Answer the MCQ question.
Query: Which drug exhibits a 13.096\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CNn1cnc2ccsc2c1=O
b O=C1CC(NCc2ccncc2)C(=O)N1c1ccccc1
Answer: a. CNn1cnc2ccsc2c1=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#}
CNn1cnc2ccsc2c1=O
CNn1cnc2ccsc2c1=O
3-(methylamino)thieno[3,2-d]pyrimidin-4-one