Task: Answer the MCQ question.
Question: Which drug has a 12.921\% 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(CSC1=NCCS1)N1CCCC1
b O=C(CN1C(=O)/C(=C/c2cccc(Br)c2)SC1=S)N1CCCC1
Answer: b. O=C(CN1C(=O)/C(=C/c2cccc(Br)c2)SC1=S)N1CCCC1
{#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(CN1C(=O)/C(=C/c2cccc(Br)c2)SC1=S)N1CCCC1
O=C(CN1C(=O)/C(=C/c2cccc(Br)c2)SC1=S)N1CCCC1
(5Z)-5-[(3-bromophenyl)methylidene]-3-(2-oxo-2-pyrrolidin-1-ylethyl)-2-sulfanylidene-1,3-thiazolidin-4-one