Problem statement: Answer the multiple-choice question.
Question: Which drug has a -0.640\% 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 other words.
Options:
(a) COc1ccc(N(CC(=O)NC(C)c2ccccc2)S(=O)(=O)c2ccc(C)cc2)cc1
(b) c1ccc2nc3c(nc2c1)[nH]c1ccccc13
(c) Cc1ccc(N(CC(=O)N=Nc2c(O)[nH]c3ccccc23)S(C)(=O)=O)c(C)c1
(d) COc1ccc(NC(=O)NC(c2ccccc2)c2ccccc2)c(OC)c1
Answer: b. c1ccc2nc3c(nc2c1)[nH]c1ccccc13
{#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#}
c1ccc2nc3c(nc2c1)[nH]c1ccccc13
c1ccc2nc3c(nc2c1)[nH]c1ccccc13
6H-indolo[2,3-b]quinoxaline