Task: Answer the multiple choice question.
Query: Which compound exhibits a 9.979\% 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. CCOC(=O)c1oc2nc(CC(C)C)c3c(c2c1N)CCC3
b. Cc1ccc(CN2CCCN(Cc3c(C)cc(C)cc3C)S2(=O)=O)cc1
Answer: a. CCOC(=O)c1oc2nc(CC(C)C)c3c(c2c1N)CCC3
{#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)c1oc2nc(CC(C)C)c3c(c2c1N)CCC3
CCOC(=O)c1oc2nc(CC(C)C)c3c(c2c1N)CCC3
ethyl 3-amino-8-(2-methylpropyl)-5-oxa-7-azatricyclo[7.3.0.02,6]dodeca-1(9),2(6),3,7-tetraene-4-carboxylate