Task: Answer the MCQ question.
Query: Which compound has a -2.068\% 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 Cc1cccc(-c2nc3c(c(SCC(=O)N4CCOCC4)n2)Cc2c(CO)cnc(C)c2O3)c1
b CCCC(=O)Nc1sc2c(c1C#N)CCCCC2
Answer: b. CCCC(=O)Nc1sc2c(c1C#N)CCCCC2
{#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#}
CCCC(=O)Nc1sc2c(c1C#N)CCCCC2
CCCC(=O)Nc1sc2c(c1C#N)CCCCC2
N-(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)butanamide