Task: Answer the multiple choice question.
Question: Which drug has a 21.397\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a COc1ccc(-c2c(=O)n(OCc3ccccn3)c3ccccc3[n+]2[O-])cc1OC
b Cn1c(=O)c2c(nc(SCCN3CCOCC3)n2Cc2ccccc2)n(C)c1=O
Answer: a. COc1ccc(-c2c(=O)n(OCc3ccccn3)c3ccccc3[n+]2[O-])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#}
COc1ccc(-c2c(=O)n(OCc3ccccn3)c3ccccc3[n+]2[O-])cc1OC
COc1ccc(-c2c(=O)n(OCc3ccccn3)c3ccccc3[n+]2[O-])cc1OC
3-(3,4-dimethoxyphenyl)-4-oxido-1-(pyridin-2-ylmethoxy)quinoxalin-4-ium-2-one