Task: Answer the multiple-choice question.
Question: Which compound has a -2.018\% 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.) Cc1c(C2C(C#N)=C(N)N(c3ccccc3C#N)C3=C2C(=O)CCC3)cnn1C
b.) CCOC(=O)C1C(=O)CC(C)(O)C(C(=O)OCC)C1c1ccc(Br)cc1
c.) CCN(CC(=O)Nc1ccc2c(c1)OCCO2)C(=O)C(C)Oc1ccc(Cl)cc1
d.) COc1ccc(S(=O)(=O)Nc2ccc3c(c2)CCC3)cc1
Answer: b. CCOC(=O)C1C(=O)CC(C)(O)C(C(=O)OCC)C1c1ccc(Br)cc1
{#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#}
CCOC(=O)C1C(=O)CC(C)(O)C(C(=O)OCC)C1c1ccc(Br)cc1
CCOC(=O)C1C(=O)CC(C)(O)C(C(=O)OCC)C1c1ccc(Br)cc1
diethyl 2-(4-bromophenyl)-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylate