Task: Answer the multiple choice question.
Question: Which compound exhibits a -1.421\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CC(C)CNC(=O)N1c2ccccc2Sc2ccccc21
(b) CCN(C(=O)COC(=O)c1cc(-c2ccccc2)nn1-c1ccccc1)C1CCS(=O)(=O)C1
Answer: b. CCN(C(=O)COC(=O)c1cc(-c2ccccc2)nn1-c1ccccc1)C1CCS(=O)(=O)C1
{#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#}
CCN(C(=O)COC(=O)c1cc(-c2ccccc2)nn1-c1ccccc1)C1CCS(=O)(=O)C1
CCN(C(=O)COC(=O)c1cc(-c2ccccc2)nn1-c1ccccc1)C1CCS(=O)(=O)C1
[2-[(1,1-dioxothiolan-3-yl)-ethylamino]-2-oxoethyl] 2,5-diphenylpyrazole-3-carboxylate