Task: Answer the multiple choice question.
Question: Which compound has a 15.556\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: COc1cccc(OC)c1-c1nn(-c2ncc(C(F)(F)F)cc2Cl)c(=O)o1
b: CCC(=O)N1CCc2cc(S(=O)(=O)NC(Cc3ccccc3)C(=O)NC3CCCC3)ccc21
c: COc1ccc2nc(SCc3cccnc3)c(C#N)cc2c1
d: COc1ccc(C(=O)NCc2ccccc2)cc1Br
Answer: a. COc1cccc(OC)c1-c1nn(-c2ncc(C(F)(F)F)cc2Cl)c(=O)o1
{#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#}
COc1cccc(OC)c1-c1nn(-c2ncc(C(F)(F)F)cc2Cl)c(=O)o1
COc1cccc(OC)c1-c1nn(-c2ncc(C(F)(F)F)cc2Cl)c(=O)o1
3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-5-(2,6-dimethoxyphenyl)-1,3,4-oxadiazol-2-one