Problem statement: Answer the multiple-choice question.
Question: Which compound has a 18.560\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a.) CC1(C)SC2c3ccccc3C(=O)N2[C@@H]1C(=O)O
b.) O=[N+]([O-])c1ccc(C(O)CN2CCOCC2)cc1
c.) Brc1ccc2nc(-c3cccs3)c(NCC3CCCO3)n2c1
d.) Cn1cc(C(=O)NCc2ccco2)c(=O)c2cc(S(=O)(=O)N3CCCC3)ccc21
Answer: b. O=[N+]([O-])c1ccc(C(O)CN2CCOCC2)cc1
{#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=[N+]([O-])c1ccc(C(O)CN2CCOCC2)cc1
O=[N+]([O-])c1ccc(C(O)CN2CCOCC2)cc1
2-morpholin-4-yl-1-(4-nitrophenyl)ethanol