Task: Answer the MCQ question.
Query: Which compound exhibits a 15.625\% 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. COc1ccc(CCNC(=O)c2cc(S(=O)(=O)N3CCC4(CC3)OCCO4)ccc2F)cc1OC
b. Cn1c(=O)c2c(nc(NN=C3CCCCC3)n2C)n(C)c1=O
c. O=C(/C=C/c1ccc(S(=O)(=O)N2CCOCC2)cc1)NCc1ccccc1
Answer: b. Cn1c(=O)c2c(nc(NN=C3CCCCC3)n2C)n(C)c1=O
{#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)c2c(nc(NN=C3CCCCC3)n2C)n(C)c1=O
Cn1c(=O)c2c(nc(NN=C3CCCCC3)n2C)n(C)c1=O
8-(2-cyclohexylidenehydrazinyl)-1,3,7-trimethylpurine-2,6-dione