Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -25.531\% 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. CCn1c(=N)n(CCOc2ccc(OC)cc2)c2ccccc21
b. Br.Clc1ccccc1CNCC1CCCO1
c. CCN1C(=O)c2cccc3c(S(=O)(=O)NC(Cc4c[nH]c5ccccc45)C(=O)O)ccc1c23
d. Cc1cc(C)c(C)c(OCCCCN2CCCCC2)c1
Answer: a. CCn1c(=N)n(CCOc2ccc(OC)cc2)c2ccccc21
{#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#}
CCn1c(=N)n(CCOc2ccc(OC)cc2)c2ccccc21
CCn1c(=N)n(CCOc2ccc(OC)cc2)c2ccccc21
1-ethyl-3-[2-(4-methoxyphenoxy)ethyl]benzimidazol-2-imine