Task: Answer the MCQ question.
Question: Which compound exhibits a 5.520\% 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. CCc1n[nH]c(=O)c2cc3occc3n12
b. O=C1c2cccc3cccc(c23)C(=O)N1CC1CCCO1
c. CCN1CCN(Cc2c(O)ccc3c2O/C(=C\C=C\c2ccccc2OC)C3=O)CC1
d. Cc1ccc(C(=O)c2ccccc2C(=O)O)s1
Answer: a. CCc1n[nH]c(=O)c2cc3occc3n12
{#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#}
CCc1n[nH]c(=O)c2cc3occc3n12
CCc1n[nH]c(=O)c2cc3occc3n12
12-ethyl-5-oxa-1,10,11-triazatricyclo[6.4.0.02,6]dodeca-2(6),3,7,11-tetraen-9-one