Problem statement: Answer the multiple choice question.
Query: Which compound has a -1.674\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CC(C)(C)c1ccc(-c2ncccc2O)cc1.Cl
[b] O=C(CSc1ncccn1)c1ccccc1Br
[c] NNC(=O)c1ccc(CSc2nc3ccccc3[nH]2)cc1
Answer: b. O=C(CSc1ncccn1)c1ccccc1Br
{#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(CSc1ncccn1)c1ccccc1Br
O=C(CSc1ncccn1)c1ccccc1Br
[O][=C][Branch1][O][C][S][C][=N][C][=C][C][=N][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][Br]
1-(2-bromophenyl)-2-pyrimidin-2-ylsulfanylethanone