Task: Answer the MCQ question.
Question: Which drug exhibits a -12.655\% 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 additional words.
Options:
a) COC(=O)CN1C(=O)COc2ccc(S(=O)(=O)NCc3ccccc3)cc21
b) N#CCCn1cc(C(=O)O)c(-c2cccs2)n1
c) COc1cccc(N=CC2=C(O)CC(C)(C)CC2=O)c1
d) COc1cc(OC)cc(C(=O)Nc2ccc(C(=O)c3ccncc3)cc2)c1
e) CC1CN(c2cc([N+](=O)[O-])ccc2Cl)CC(C)N1
Answer: e. CC1CN(c2cc([N+](=O)[O-])ccc2Cl)CC(C)N1
{#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#}
CC1CN(c2cc([N+](=O)[O-])ccc2Cl)CC(C)N1
CC1CN(c2cc([N+](=O)[O-])ccc2Cl)CC(C)N1
1-(2-chloro-5-nitrophenyl)-3,5-dimethylpiperazine