Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 14.148\% 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) CCOC(CCc1c(C)nc(NC(C)=O)[nH]c1=O)OCC
(b) COc1ccc(C2N(c3ccc(Cl)cc3)N=C(C(C)=O)N(C)N2C(C)=O)cc1
Answer: a. CCOC(CCc1c(C)nc(NC(C)=O)[nH]c1=O)OCC
{#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(CCc1c(C)nc(NC(C)=O)[nH]c1=O)OCC
CCOC(CCc1c(C)nc(NC(C)=O)[nH]c1=O)OCC
N-[5-(3,3-diethoxypropyl)-4-methyl-6-oxo-1H-pyrimidin-2-yl]acetamide