Task: Answer the multiple choice question.
Question: Which compound has a 18.046\% 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: O=C(COc1ccc(Cl)cc1)Nc1ccc2c(c1)nc1n2CCOC1
b: N#Cc1c(N)n(-c2ccccc2)c(=O)c2cc([N+](=O)[O-])ccc12
c: CC(C)CNC(=O)C(=O)NCC1CCCN1S(=O)(=O)c1cccs1
d: COc1ccc(CN2CCNC(=O)C2CC(=O)N(C)Cc2ccon2)cc1OC
Answer: b. N#Cc1c(N)n(-c2ccccc2)c(=O)c2cc([N+](=O)[O-])ccc12
{#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#Cc1c(N)n(-c2ccccc2)c(=O)c2cc([N+](=O)[O-])ccc12
N#Cc1c(N)n(-c2ccccc2)c(=O)c2cc([N+](=O)[O-])ccc12
3-amino-7-nitro-1-oxo-2-phenylisoquinoline-4-carbonitrile