Task: Answer the multiple choice question.
Query: Which compound has a 0.850\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1
b. O/N=C/c1ccc(OCC(O)COc2ccc(/C=N/O)cc2)cc1
Answer: a. COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=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#}
COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1
COc1ccc(Cn2c(-c3ccco3)nc3oc4ccccc4c(=O)c3c2=O)cc1
2-(furan-2-yl)-3-[(4-methoxyphenyl)methyl]chromeno[2,3-d]pyrimidine-4,5-dione