Task: Answer the multiple choice question.
Query: Which drug exhibits a 19.818\% 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: O=c1[nH]c(O)c(/C=C2\C=Nc3ccc(OCc4ccccc4)cc32)c(=O)[nH]1
b: O=C(Cc1ccc(F)cc1)OCn1nnc2ccccc2c1=O
Answer: a. O=c1[nH]c(O)c(/C=C2\C=Nc3ccc(OCc4ccccc4)cc32)c(=O)[nH]1
{#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=c1[nH]c(O)c(/C=C2\C=Nc3ccc(OCc4ccccc4)cc32)c(=O)[nH]1
O=c1[nH]c(O)c(/C=C2\C=Nc3ccc(OCc4ccccc4)cc32)c(=O)[nH]1
6-hydroxy-5-[(Z)-(5-phenylmethoxyindol-3-ylidene)methyl]-1H-pyrimidine-2,4-dione