Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 12.817\% 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.) COCCn1c(SCC(=O)Nc2cc(C)on2)nnc1-c1ccccc1
b.) O=c1c2oc3ccccc3c2[nH]c(=S)n1-c1ccccc1
Answer: b. O=c1c2oc3ccccc3c2[nH]c(=S)n1-c1ccccc1
{#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#}
3-phenyl-2-sulfanylidene-1H-[1]benzofuro[3,2-d]pyrimidin-4-one