Task: Answer the multiple choice question.
Question: Which compound exhibits a 21.908\% 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) Cc1nc([N+](=O)[O-])c(Br)n1CC(=O)c1ccccc1
b) O=C(O)c1cc(-c2ccc(Cl)cc2)n(-c2ccccc2)n1
c) COc1ccc(S(=O)(=O)N(Cc2nc3ccccc3c(=O)[nH]2)C2CCCC2)cc1
d) Cc1cc(NC(=O)CN2CCN(c3ccc(O)cc3)CC2)no1
Answer: b. O=C(O)c1cc(-c2ccc(Cl)cc2)n(-c2ccccc2)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#}
O=C(O)c1cc(-c2ccc(Cl)cc2)n(-c2ccccc2)n1
O=C(O)c1cc(-c2ccc(Cl)cc2)n(-c2ccccc2)n1
5-(4-chlorophenyl)-1-phenylpyrazole-3-carboxylic acid