Task: Answer the MCQ question.
Question: Which drug exhibits a -4.811\% 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.) Cn1c(=O)c2c(nc(Cl)n2Cc2ccc(Cl)c(Cl)c2)n(C)c1=O
b.) O=C(NC1CCCCC1)N1CCCC(c2nc(-c3ccc(S(=O)(=O)N4CCCC4)cc3)no2)C1
c.) O=C(COC(=O)/C=C/c1ccc(S(=O)(=O)N2CCOCC2)cc1)NCc1ccc2c(c1)OCO2
d.) Cc1ccccc1Cn1ccc(NC(=O)c2cc3ncc(Br)cn3n2)n1
Answer: a. Cn1c(=O)c2c(nc(Cl)n2Cc2ccc(Cl)c(Cl)c2)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(Cl)n2Cc2ccc(Cl)c(Cl)c2)n(C)c1=O
Cn1c(=O)c2c(nc(Cl)n2Cc2ccc(Cl)c(Cl)c2)n(C)c1=O
8-chloro-7-[(3,4-dichlorophenyl)methyl]-1,3-dimethylpurine-2,6-dione