Task: Answer the multiple choice question.
Query: Which compound exhibits a 4.532\% 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=C1c2ccccc2C(=O)c2c1cccc2N1CCN(Cc2ccccc2)CC1
b) CC(CC(=O)O)CC(=O)Nc1nncs1
c) Cc1ccc(Cn2nc(C)c(NC(=O)c3cc(-c4ccco4)on3)c2C)cc1
d) COC(=O)c1ccc(N2CCN(S(=O)(=O)c3c(C)cc(C)cc3C)CC2)c([N+](=O)[O-])c1
Answer: b. CC(CC(=O)O)CC(=O)Nc1nncs1
{#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#}
CC(CC(=O)O)CC(=O)Nc1nncs1
CC(CC(=O)O)CC(=O)Nc1nncs1
[C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][C][=Branch1][C][=O][N][C][=N][N][=C][S][Ring1][Branch1]
3-methyl-5-oxo-5-(1,3,4-thiadiazol-2-ylamino)pentanoic acid