Problem statement: Answer the multiple choice question.
Query: Which compound has a 3.182\% 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) O=C(OCCCN=C1NS(=O)(=O)c2ccccc21)c1ccc([N+](=O)[O-])cc1
(b) O=C(O)CN1C(=O)CC(Cc2ccc(Cl)cc2)C1=O
Answer: a. O=C(OCCCN=C1NS(=O)(=O)c2ccccc21)c1ccc([N+](=O)[O-])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#}
O=C(OCCCN=C1NS(=O)(=O)c2ccccc21)c1ccc([N+](=O)[O-])cc1
O=C(OCCCN=C1NS(=O)(=O)c2ccccc21)c1ccc([N+](=O)[O-])cc1
3-[(1,1-dioxo-1,2-benzothiazol-3-ylidene)amino]propyl 4-nitrobenzoate