Task: Answer the multiple choice question.
Query: Which drug has a 18.209\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] S=c1[nH]c2cc(Br)cnc2[nH]1
[b] COc1ccc(Cn2ccnc2)cc1[N+](=O)[O-]
[c] COCCNC(=O)c1ccccc1NC(=O)CCSc1ccccc1
[d] CN1CCN(C(=O)/C=C/c2ccc(Cl)cc2)CC1
[e] O=C(Nc1ccc(-c2nnc(-c3ccccc3)o2)cc1)C(F)(F)F
Answer: a. S=c1[nH]c2cc(Br)cnc2[nH]1
{#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#}
S=c1[nH]c2cc(Br)cnc2[nH]1
S=c1[nH]c2cc(Br)cnc2[nH]1
6-bromo-1,3-dihydroimidazo[4,5-b]pyridine-2-thione