Task: Answer the multiple choice question.
Question: Which drug has a -21.987\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a O=C(Oc1ccccc1)c1cc2ccccc2o1
b Cc1ccc(Cl)cc1NC(=O)CC1NCCNC1=O
c Br.CCn1c(=N)n(CC(=O)c2ccc(Br)s2)c2ccccc21
Answer: c. Br.CCn1c(=N)n(CC(=O)c2ccc(Br)s2)c2ccccc21
{#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#}
Br.CCn1c(=N)n(CC(=O)c2ccc(Br)s2)c2ccccc21
Br.CCn1c(=N)n(CC(=O)c2ccc(Br)s2)c2ccccc21
1-(5-bromothiophen-2-yl)-2-(3-ethyl-2-iminobenzimidazol-1-yl)ethanone;hydrobromide