Task: Answer the multiple choice question.
Question: Which compound has a -0.683\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) O=[N+]([O-])c1cc(Cl)ccc1-c1nc(-c2ccncc2)no1
b) Nc1c2c(nc3ccc(Br)cc13)N(C1CCCCC1)CC2.O=C(O)C(=O)O
Answer: a. O=[N+]([O-])c1cc(Cl)ccc1-c1nc(-c2ccncc2)no1
{#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#}
O=[N+]([O-])c1cc(Cl)ccc1-c1nc(-c2ccncc2)no1
O=[N+]([O-])c1cc(Cl)ccc1-c1nc(-c2ccncc2)no1
5-(4-chloro-2-nitrophenyl)-3-pyridin-4-yl-1,2,4-oxadiazole