Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.778\% 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 Cn1c(=O)n(CC(=O)N2CCC3(CC2)OCCO3)c(=O)c2ccccc21
b CC1CN(C(=O)CCC(=O)NCCCN2CCC(Cc3ccccc3)CC2)c2cc(Cl)ccc2O1
Answer: a. Cn1c(=O)n(CC(=O)N2CCC3(CC2)OCCO3)c(=O)c2ccccc21
{#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#}
Cn1c(=O)n(CC(=O)N2CCC3(CC2)OCCO3)c(=O)c2ccccc21
Cn1c(=O)n(CC(=O)N2CCC3(CC2)OCCO3)c(=O)c2ccccc21
3-[2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-2-oxoethyl]-1-methylquinazoline-2,4-dione