Task: Answer the multiple-choice question.
Query: Which compound has a -0.746\% 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. Cc1nn2c(=O)c(NC(=O)c3ccc(Cl)cc3)cnc2s1
b. COc1cccc(CN2CCNC(=O)C2CC(=O)N(C)CCC2CCOCC2)c1
Answer: a. Cc1nn2c(=O)c(NC(=O)c3ccc(Cl)cc3)cnc2s1
{#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#}
Cc1nn2c(=O)c(NC(=O)c3ccc(Cl)cc3)cnc2s1
Cc1nn2c(=O)c(NC(=O)c3ccc(Cl)cc3)cnc2s1
4-chloro-N-(2-methyl-5-oxo-[1,3,4]thiadiazolo[3,2-a]pyrimidin-6-yl)benzamide