Task: Answer the multiple-choice question.
Question: Which compound has a -2.492\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: COCCn1c(=O)c2c(nc3n2CCCN3CCc2ccccc2)n(C)c1=O
b: CCOc1cc(C(=O)NCC(=O)N/N=C/c2sccc2C)cc(OCC)c1OCC
c: COc1ccc(Cc2nc(C(=O)Nc3ccc(F)cc3)cs2)cc1
d: COc1ccc(/C(C)=N/OC/C(O)=C(\C#N)c2nc3ccccc3[nH]2)cc1OC
Answer: a. COCCn1c(=O)c2c(nc3n2CCCN3CCc2ccccc2)n(C)c1=O
{#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#}
COCCn1c(=O)c2c(nc3n2CCCN3CCc2ccccc2)n(C)c1=O
COCCn1c(=O)c2c(nc3n2CCCN3CCc2ccccc2)n(C)c1=O
3-(2-methoxyethyl)-1-methyl-9-(2-phenylethyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione