Task: Answer the multiple choice question.
Query: What is the hERG inhibition at 1uM of a drug with the SMILES O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
a.) 4.303
b.) 2.240
c.) 12.511
d.) 6.780
Answer: b. 2.240\%.
{#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}.
O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
O=c1c2ccccc2oc2nc(-c3cccs3)n(CCc3ccccc3)c(=O)c12
3-(2-phenylethyl)-2-(thiophen-2-yl)chromeno[2,3-d]pyrimidine-4,5-dione