Task: Answer the MCQ question.
Question: Which compound has a -3.517\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=C(NCc1cccs1)c1cnn2cccnc12
b O=S(=O)(c1cc(F)cc(F)c1)N1CCN(c2ncccn2)CC1
Answer: a. O=C(NCc1cccs1)c1cnn2cccnc12
{#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=C(NCc1cccs1)c1cnn2cccnc12
O=C(NCc1cccs1)c1cnn2cccnc12
N-(thiophen-2-ylmethyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide