Problem statement: Answer the multiple choice question.
Question: Which compound has a 2.619\% 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(c1cnc2ccccn2c1=O)N1CCCc2ccccc21
(b) COC(=O)c1ccccc1NC(=O)CSc1nc(N)cc(N)n1
Answer: a. O=C(c1cnc2ccccn2c1=O)N1CCCc2ccccc21
{#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#}
O=C(c1cnc2ccccn2c1=O)N1CCCc2ccccc21
O=C(c1cnc2ccccn2c1=O)N1CCCc2ccccc21
3-(3,4-dihydro-2H-quinoline-1-carbonyl)pyrido[1,2-a]pyrimidin-4-one