Task: Answer the MCQ question.
Query: Which compound has a 13.215\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C(Nc1nncs1)c1cc2c(s1)CCC2
(b) Cc1nn(-c2nnc(NCc3ccccc3)nn2)c(C)c1Br
(c) COc1cc(/C=N/NC(=O)c2cccc3ccccc23)ccc1OCC(N)=O
Answer: a. O=C(Nc1nncs1)c1cc2c(s1)CCC2
{#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(Nc1nncs1)c1cc2c(s1)CCC2
O=C(Nc1nncs1)c1cc2c(s1)CCC2
N-(1,3,4-thiadiazol-2-yl)-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxamide