Task: Answer the multiple-choice question.
Query: Which compound exhibits a -12.897\% human ether-à-go-go related gene (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) Brc1ccccc1
(b) COc1ccc(CNc2nc3nc(-c4ccccc4)cc(=O)n3[nH]2)cc1OC
Answer: b. COc1ccc(CNc2nc3nc(-c4ccccc4)cc(=O)n3[nH]2)cc1OC
{#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#}
2-[(3,4-dimethoxyphenyl)methylamino]-5-phenyl-1H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one