Task: Answer the multiple choice question.
Query: Which drug has a 1.972\% 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 CCn1c(COc2ccccc2)nnc1SCC(=O)Nc1cc(OC)ccc1OC
b O=C1CC(C2CCCO2)C(=O)N1c1cccc(Cl)c1
Answer: a. CCn1c(COc2ccccc2)nnc1SCC(=O)Nc1cc(OC)ccc1OC
{#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#}
CCn1c(COc2ccccc2)nnc1SCC(=O)Nc1cc(OC)ccc1OC
CCn1c(COc2ccccc2)nnc1SCC(=O)Nc1cc(OC)ccc1OC
N-(2,5-dimethoxyphenyl)-2-[[4-ethyl-5-(phenoxymethyl)-1,2,4-triazol-3-yl]sulfanyl]acetamide