Task: Answer the multiple choice question.
Question: Which drug exhibits a 6.543\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Cc1ccnc(NC(=O)CC(c2ccccc2)c2ccccc2)n1
b: CNC(=O)COc1coc(CN2CCN(c3cccc(Cl)c3)CC2)cc1=O
Answer: b. CNC(=O)COc1coc(CN2CCN(c3cccc(Cl)c3)CC2)cc1=O
{#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#}
CNC(=O)COc1coc(CN2CCN(c3cccc(Cl)c3)CC2)cc1=O
CNC(=O)COc1coc(CN2CCN(c3cccc(Cl)c3)CC2)cc1=O
2-[6-[[4-(3-chlorophenyl)piperazin-1-yl]methyl]-4-oxopyran-3-yl]oxy-N-methylacetamide