Task: Answer the MCQ question.
Question: Which compound has a 5.545\% 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: O=C(COc1ccc(Cl)cc1Br)Nc1ccncc1
b: CCOC(=O)N1CCN(Cc2ccc(O)c3ncccc23)CC1
c: COc1ccc(/C=C/c2cc(C(F)(F)F)on2)cc1
d: Cc1ccc(NC(=O)c2ccc3nc[nH]c3c2)c(O)c1
Answer: b. CCOC(=O)N1CCN(Cc2ccc(O)c3ncccc23)CC1
{#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#}
CCOC(=O)N1CCN(Cc2ccc(O)c3ncccc23)CC1
CCOC(=O)N1CCN(Cc2ccc(O)c3ncccc23)CC1
ethyl 4-[(8-hydroxyquinolin-5-yl)methyl]piperazine-1-carboxylate