Problem statement: Answer the multiple choice question.
Question: Which drug has a -0.991\% human ether-à-go-go related gene (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) CCCCNC(=O)c1ccccc1NC(=O)CN(c1ccccc1)S(=O)(=O)N(C)C
(b) O=[N+]([O-])c1ccc2nc(SCc3cn4ccccc4n3)[nH]c2c1
Answer: b. O=[N+]([O-])c1ccc2nc(SCc3cn4ccccc4n3)[nH]c2c1
{#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-])c1ccc2nc(SCc3cn4ccccc4n3)[nH]c2c1
O=[N+]([O-])c1ccc2nc(SCc3cn4ccccc4n3)[nH]c2c1
2-(imidazo[1,2-a]pyridin-2-ylmethylsulfanyl)-6-nitro-1H-benzimidazole