Task: Answer the MCQ question.
Query: Which drug has a -51.618\% 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] COc1cccc(/C=N/NC(=O)CC(=O)NCCc2ccccc2)c1OC
[b] O=C(c1ccco1)N1CCN(Cc2nnc(-c3cccc(Br)c3)o2)CC1
Answer: b. O=C(c1ccco1)N1CCN(Cc2nnc(-c3cccc(Br)c3)o2)CC1
{#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(c1ccco1)N1CCN(Cc2nnc(-c3cccc(Br)c3)o2)CC1
O=C(c1ccco1)N1CCN(Cc2nnc(-c3cccc(Br)c3)o2)CC1
[4-[[5-(3-bromophenyl)-1,3,4-oxadiazol-2-yl]methyl]piperazin-1-yl]-(furan-2-yl)methanone