Task: Answer the MCQ question.
Query: Which compound exhibits a 13.425\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCOC(=O)Cc1csc2nc3sc(C)c(C)c3c(=O)n12
b. CCN(c1cccc(C)c1)c1ncnc2nc[nH]c12
Answer: b. CCN(c1cccc(C)c1)c1ncnc2nc[nH]c12
{#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#}
CCN(c1cccc(C)c1)c1ncnc2nc[nH]c12
CCN(c1cccc(C)c1)c1ncnc2nc[nH]c12
N-ethyl-N-(3-methylphenyl)-7H-purin-6-amine