Task: Answer the multiple-choice question.
Question: Which drug exhibits a -1.919\% 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)C1CCN(C(=O)c2c(-c3c(F)cccc3Cl)noc2C)CC1
b. CC(C)OC(=O)c1cc2c(=O)[nH]c(C(Cl)(Cl)Cl)nc2o1
Answer: a. CCOC(=O)C1CCN(C(=O)c2c(-c3c(F)cccc3Cl)noc2C)CC1
{#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)C1CCN(C(=O)c2c(-c3c(F)cccc3Cl)noc2C)CC1
CCOC(=O)C1CCN(C(=O)c2c(-c3c(F)cccc3Cl)noc2C)CC1
ethyl 1-[3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]piperidine-4-carboxylate