Task: Answer the multiple-choice question.
Query: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a compound with the SMILES O=c1oc(-c2ccccc2)nc2sc3c(c12)CCCC3?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) 18.545
(b) 15.297
(c) 7.704
(d) 12.858
(e) 3.553
Answer: a. 18.545\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
2-phenyl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d][1,3]oxazin-4-one