Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -5.643\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COCCNC(=O)C(c1cccs1)N(CCc1ccccc1)C(=O)Cn1nnc2ccccc21
(b) Cc1cc(C(=O)N/N=C/C=C/c2ccccc2[N+](=O)[O-])c(C)o1
Answer: b. Cc1cc(C(=O)N/N=C/C=C/c2ccccc2[N+](=O)[O-])c(C)o1
{#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#}
2,5-dimethyl-N-[(E)-[(E)-3-(2-nitrophenyl)prop-2-enylidene]amino]furan-3-carboxamide