Task: Answer the MCQ question.
Question: Which compound has a 18.277\% 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] O=C(Cn1nc(-c2cccc([N+](=O)[O-])c2)c2ccccc2c1=O)NCC1CCCO1
[b] CC1=C(C(=O)OCCOC(C)C)C(c2cc3c(cc2Br)OCO3)CC(=O)N1
Answer: b. CC1=C(C(=O)OCCOC(C)C)C(c2cc3c(cc2Br)OCO3)CC(=O)N1
{#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#}
CC1=C(C(=O)OCCOC(C)C)C(c2cc3c(cc2Br)OCO3)CC(=O)N1
CC1=C(C(=O)OCCOC(C)C)C(c2cc3c(cc2Br)OCO3)CC(=O)N1
2-propan-2-yloxyethyl 4-(6-bromo-1,3-benzodioxol-5-yl)-6-methyl-2-oxo-3,4-dihydro-1H-pyridine-5-carboxylate