Task: Answer the multiple-choice question.
Question: Which compound exhibits a 5.951\% 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. COC(=O)c1sc2nc3c(cc2c1N)COC(C)(C)C3
b. CCCS(=O)(=O)c1cn2cccc(N)c2c1S(=O)(=O)CCC
Answer: a. COC(=O)c1sc2nc3c(cc2c1N)COC(C)(C)C3
{#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#}
COC(=O)c1sc2nc3c(cc2c1N)COC(C)(C)C3
COC(=O)c1sc2nc3c(cc2c1N)COC(C)(C)C3
methyl6-amino-12,12-dimethyl-11-oxa-4-thia-2-azatricyclo[7.4.0.03,7]trideca-1,3(7),5,8-tetraene-5-carboxylate