Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 16.758\% 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.) CCOC(=O)CSc1nnc(CNC(=O)Cc2ccccc2)n1-c1ccccc1OC
b.) CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
c.) COc1cc(-c2nc3n(n2)C(c2ccncc2)C2=C(CCCC2=O)N3)cc(OC)c1OC
d.) COc1cc(C2Nc3ccc4ncccc4c3C3=C2C(=O)CC(C)(C)C3)cc(OC)c1O
e.) CCOc1ccc(C2CC(=O)NC(SC)=C2C#N)cc1
Answer: b. CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
{#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#}
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
3-butyl-7-methyl-8-(4-phenylphenyl)purine-2,6-dione