Task: Answer the multiple choice question.
Question: Which drug has a 3.646\% 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(COc1ccc(Br)cc1)Nc1nnc(C2CC2)s1
b: COc1ccccc1OCC(=O)NCc1n[nH]c(=O)c2ccccc12
Answer: a. O=C(COc1ccc(Br)cc1)Nc1nnc(C2CC2)s1
{#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(COc1ccc(Br)cc1)Nc1nnc(C2CC2)s1
O=C(COc1ccc(Br)cc1)Nc1nnc(C2CC2)s1
2-(4-bromophenoxy)-N-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)acetamide