Task: Answer the MCQ question.
Question: Which compound has a 2.254\% 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 other words.
Options:
(a) COc1nc(N(C)S(=O)(=O)c2ccc(C)cc2)nc(C)c1Br
(b) Nc1n[nH]c(-c2ccccc2)n1
(c) COc1cccc(CNC(=O)CSc2nc3ccc(C)cc3[nH]2)c1
(d) O=C(Nc1ccccc1C(=O)N1CCN(Cc2ccccc2)CC1)c1ccc(F)cc1
Answer: b. Nc1n[nH]c(-c2ccccc2)n1
{#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#}
Nc1n[nH]c(-c2ccccc2)n1
Nc1n[nH]c(-c2ccccc2)n1
5-phenyl-1H-1,2,4-triazol-3-amine