Task: Answer the MCQ question.
Question: Which compound has a 12.333\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: C=CCn1c(SCC(=O)Nc2ccccc2CC)nnc1-c1ccncc1
b: CCOc1cc(C2C3=C(CCCC3=O)Nc3ccc4ncccc4c32)ccc1O
Answer: b. CCOc1cc(C2C3=C(CCCC3=O)Nc3ccc4ncccc4c32)ccc1O
{#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#}
12-(3-ethoxy-4-hydroxyphenyl)-8,9,10,12-tetrahydro-7H-benzo[b][4,7]phenanthrolin-11-one