Task: Answer the multiple-choice question.
Query: Which compound exhibits a 16.772\% 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 other words.
Options:
a. Cn1c(=O)[nH]c(=O)c2c1nc(N1CCOCC1)n2CCSc1nc2ccccc2[nH]1
b. CCCCCCNS(=O)(=O)c1ccc(NC(=O)C2CCCO2)cc1
c. CC1=NN(C(=O)c2ccccc2Br)C(O)(c2cccnc2)C1
d. COc1cc(-c2c(-c3ccco3)noc2-c2ccccc2)cc(OC)c1OC
Answer: a. Cn1c(=O)[nH]c(=O)c2c1nc(N1CCOCC1)n2CCSc1nc2ccccc2[nH]1
{#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#}
Cn1c(=O)[nH]c(=O)c2c1nc(N1CCOCC1)n2CCSc1nc2ccccc2[nH]1
Cn1c(=O)[nH]c(=O)c2c1nc(N1CCOCC1)n2CCSc1nc2ccccc2[nH]1
7-[2-(1H-benzimidazol-2-ylsulfanyl)ethyl]-3-methyl-8-morpholin-4-ylpurine-2,6-dione