Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.100\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a CC(Oc1ccccc1)c1nnc(N)s1
b O=C(Nc1ccccc1)c1cnc(-c2ccccc2)nc1-c1ccccc1
Answer: b. O=C(Nc1ccccc1)c1cnc(-c2ccccc2)nc1-c1ccccc1
{#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(Nc1ccccc1)c1cnc(-c2ccccc2)nc1-c1ccccc1
O=C(Nc1ccccc1)c1cnc(-c2ccccc2)nc1-c1ccccc1
N,2,4-triphenylpyrimidine-5-carboxamide