Task: Answer the multiple choice question.
Question: Which compound exhibits a 9.352\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C(COc1ccc([N+](=O)[O-])cc1)Nc1ccc(CN2CCOCC2)cc1
[b] Cn1c(N2CCCC2)nc2c1c(=O)n(Cc1ccc(Cl)cc1)c(=O)n2C
[c] COc1ccc(OC)c(C(c2nnnn2CCc2ccccc2)N2CCC(C(N)=O)CC2)c1
Answer: b. Cn1c(N2CCCC2)nc2c1c(=O)n(Cc1ccc(Cl)cc1)c(=O)n2C
{#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(N2CCCC2)nc2c1c(=O)n(Cc1ccc(Cl)cc1)c(=O)n2C
Cn1c(N2CCCC2)nc2c1c(=O)n(Cc1ccc(Cl)cc1)c(=O)n2C
[C][N][C][Branch1][Branch2][N][C][C][C][C][Ring1][Branch1][=N][C][=C][Ring1][#Branch2][C][=Branch1][C][=O][N][Branch1][=N][C][C][=C][C][=C][Branch1][C][Cl][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][N][Ring1][S][C]
1-[(4-chlorophenyl)methyl]-3,7-dimethyl-8-pyrrolidin-1-ylpurine-2,6-dione