Task: Answer the multiple-choice question.
Question: Which compound exhibits a 5.221\% 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: CCC1(c2ccccc2)NC(=O)N(CC(=O)Nc2cc(Cl)ccc2N2CCN(C)CC2)C1=O
b: Cc1cc(=O)[nH]c(N/N=C/C(C)c2ccccc2)n1
Answer: b. Cc1cc(=O)[nH]c(N/N=C/C(C)c2ccccc2)n1
{#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#}
Cc1cc(=O)[nH]c(N/N=C/C(C)c2ccccc2)n1
Cc1cc(=O)[nH]c(N/N=C/C(C)c2ccccc2)n1
4-methyl-2-[(2E)-2-(2-phenylpropylidene)hydrazinyl]-1H-pyrimidin-6-one