Task: Answer the multiple-choice question.
Question: Which drug exhibits a -5.330\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] COc1cc(CC(=O)OCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC
[b] CC(=O)Nc1ccc2c3c(cccc13)CC2
[c] CC(=O)c1ccc(NC(=O)Cn2cnc(S(=O)(=O)N3CCOCC3)c2)cc1
Answer: a. COc1cc(CC(=O)OCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC
{#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#}
COc1cc(CC(=O)OCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC
COc1cc(CC(=O)OCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC
[2-(3-nitroanilino)-2-oxoethyl] 2-(3,4,5-trimethoxyphenyl)acetate