Task: Answer the multiple choice question.
Query: Which drug exhibits a 12.492\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a O=c1[nH]c(=S)[nH]c(O)c1N=Nc1ccc2c(c1)OCCO2
b CCOC(=O)c1c(C)oc2c1c(C=NCCC(=O)O)c(O)c1ccccc12
c CCOc1cc(C(=O)N=c2sccn2C)cc(Br)c1OC
d Cc1ccc2[nH]c(=O)c(CN(CCCN(C)C)C(=O)Nc3ccc(Cl)cc3)cc2c1
Answer: a. O=c1[nH]c(=S)[nH]c(O)c1N=Nc1ccc2c(c1)OCCO2
{#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#}
O=c1[nH]c(=S)[nH]c(O)c1N=Nc1ccc2c(c1)OCCO2
O=c1[nH]c(=S)[nH]c(O)c1N=Nc1ccc2c(c1)OCCO2
5-(2,3-dihydro-1,4-benzodioxin-6-yldiazenyl)-6-hydroxy-2-sulfanylidene-1H-pyrimidin-4-one