Task: Answer the multiple choice question.
Question: Which compound exhibits a 15.555\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) O=C(c1cc(-c2ccc(Br)cc2)on1)N1CCCC1
(b) COc1ccc(NC(=O)CCCN2C(=O)C(c3ccccc3)Oc3cccnc32)c(OC)c1
(c) CCOC(=O)c1sc2nc(SCC(=O)N(CC)CC)n(CCCN3CCCC3=O)c(=O)c2c1C
(d) CSc1ccc(-c2nnn(Cc3ccccn3)n2)cc1
(e) Cc1[nH]n(-c2ccccc2)c(=O)c1C(c1ccc([N+](=O)[O-])cc1)c1c(C)[nH]n(-c2ccccc2)c1=O
Answer: a. O=C(c1cc(-c2ccc(Br)cc2)on1)N1CCCC1
{#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(c1cc(-c2ccc(Br)cc2)on1)N1CCCC1
O=C(c1cc(-c2ccc(Br)cc2)on1)N1CCCC1
[5-(4-bromophenyl)-1,2-oxazol-3-yl]-pyrrolidin-1-ylmethanone