Task: Answer the MCQ question.
Query: Which drug has a 2.753\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. N#Cc1ccc2c(c1)nc1ccccn12
b. CCN(CC(=O)NC1CCS(=O)(=O)C1)c1ccc(S(C)(=O)=O)cc1[N+](=O)[O-]
Answer: a. N#Cc1ccc2c(c1)nc1ccccn12
{#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#}
N#Cc1ccc2c(c1)nc1ccccn12
N#Cc1ccc2c(c1)nc1ccccn12
pyrido[1,2-a]benzimidazole-7-carbonitrile