Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 0.474\% 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] CCCCCCN=C(C)C1=C(O)C(C(=O)OC)C(C)(C)CC1=O
[b] O=[N+]([O-])c1ccc(N2CCN(CCO)CC2)cc1NCc1ccco1
Answer: b. O=[N+]([O-])c1ccc(N2CCN(CCO)CC2)cc1NCc1ccco1
{#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-])c1ccc(N2CCN(CCO)CC2)cc1NCc1ccco1
O=[N+]([O-])c1ccc(N2CCN(CCO)CC2)cc1NCc1ccco1
2-[4-[3-(furan-2-ylmethylamino)-4-nitrophenyl]piperazin-1-yl]ethanol