Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 2.643\% 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) CCCCNCCCOc1cc(Cl)ccc1Cl.O=C(O)C(=O)O
b) COc1cccc(CNCc2ccc(C(=O)O)cc2)c1OC.Cl
c) O=C(N/N=C/c1ccc(Br)s1)c1cccc([N+](=O)[O-])c1
d) CN=C1S/C(=C\c2cccn2-c2cccc(Br)c2)C(=O)N1C
e) O=S1(=O)C=C(Oc2ccc3ccccc3c2)c2ccccc21
Answer: d. CN=C1S/C(=C\c2cccn2-c2cccc(Br)c2)C(=O)N1C
{#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#}
CN=C1S/C(=C\c2cccn2-c2cccc(Br)c2)C(=O)N1C
CN=C1S/C(=C\c2cccn2-c2cccc(Br)c2)C(=O)N1C
(5Z)-5-[[1-(3-bromophenyl)pyrrol-2-yl]methylidene]-3-methyl-2-methylimino-1,3-thiazolidin-4-one