Problem statement: Answer the MCQ question.
Query: Which compound has a 1.671\% 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 additional words.
Options:
a: NS(=O)(=O)c1ccc(-c2ccc(/C=C3\C(=O)Nc4ccccc43)o2)cc1
b: Cc1nc(N)c(C#N)c(-c2cccnc2)c1C
c: O=C(CN1C(=O)NC2(CCCCC2)C1=O)Nc1ccc2c(c1)CCC2
d: COCCn1c(C23CC4CC(CC(C4)C2)C3)n[nH]c1=S
Answer: b. Cc1nc(N)c(C#N)c(-c2cccnc2)c1C
{#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#}
Cc1nc(N)c(C#N)c(-c2cccnc2)c1C
Cc1nc(N)c(C#N)c(-c2cccnc2)c1C
2-amino-5,6-dimethyl-4-pyridin-3-ylpyridine-3-carbonitrile