Task: Answer the multiple-choice question.
Query: Which drug exhibits a 8.999\% 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) CCOc1ccc(Nc2cc3n(c(=O)n2)CCc2cc(OC)c(OC)cc2-3)cc1
(b) Cc1ccc(C(=O)NC(O)C(Cl)(Cl)Cl)cc1
Answer: a. CCOc1ccc(Nc2cc3n(c(=O)n2)CCc2cc(OC)c(OC)cc2-3)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#}
CCOc1ccc(Nc2cc3n(c(=O)n2)CCc2cc(OC)c(OC)cc2-3)cc1
CCOc1ccc(Nc2cc3n(c(=O)n2)CCc2cc(OC)c(OC)cc2-3)cc1
2-(4-ethoxyanilino)-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one