Task: Answer the MCQ question.
Question: Which drug exhibits a 6.563\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a Nc1nc(NCC2CCCO2)nc(Nc2cccc(Cl)c2)c1[N+](=O)[O-]
b Cc1ccc(NC(=O)C2CCN(S(=O)(=O)c3c(C)[nH]c(=O)[nH]c3=O)CC2)cc1
c CCN1C(=O)/C(=C/c2ccc3c(c2)CCN3CCCCl)C(=O)NC1=S
d CCOC(=O)N1CCN(C(=O)c2cccc(N3C(=O)NC4CC3(C)Oc3ccc(Cl)cc34)c2)CC1
e O=C(CCn1c(=S)oc2ccccc21)N1CCCCC1
Answer: a. Nc1nc(NCC2CCCO2)nc(Nc2cccc(Cl)c2)c1[N+](=O)[O-]
{#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#}
Nc1nc(NCC2CCCO2)nc(Nc2cccc(Cl)c2)c1[N+](=O)[O-]
Nc1nc(NCC2CCCO2)nc(Nc2cccc(Cl)c2)c1[N+](=O)[O-]
4-N-(3-chlorophenyl)-5-nitro-2-N-(oxolan-2-ylmethyl)pyrimidine-2,4,6-triamine