Task: Answer the multiple-choice question.
Query: Which compound has a 2.156\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(CSc1ncnc2sccc12)NCc1ccc2c(c1)OCO2
[b] O=C(/C=C/NNC(=O)c1ccccc1)c1ccccc1
Answer: a. O=C(CSc1ncnc2sccc12)NCc1ccc2c(c1)OCO2
{#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#}
O=C(CSc1ncnc2sccc12)NCc1ccc2c(c1)OCO2
O=C(CSc1ncnc2sccc12)NCc1ccc2c(c1)OCO2
N-(1,3-benzodioxol-5-ylmethyl)-2-thieno[2,3-d]pyrimidin-4-ylsulfanylacetamide