Task: Answer the multiple choice question.
Question: Which compound has a 6.204\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) Cc1cc(C)n2nc(SCc3nnc(-c4ccccc4Br)o3)nc2n1
b) CCOc1cc(C(c2c(C)[nH][nH]c2=O)c2c(C)[nH][nH]c2=O)ccc1OS(=O)(=O)c1ccccc1
Answer: a. Cc1cc(C)n2nc(SCc3nnc(-c4ccccc4Br)o3)nc2n1
{#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#}
Cc1cc(C)n2nc(SCc3nnc(-c4ccccc4Br)o3)nc2n1
Cc1cc(C)n2nc(SCc3nnc(-c4ccccc4Br)o3)nc2n1
2-(2-bromophenyl)-5-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanylmethyl]-1,3,4-oxadiazole