Task: Answer the multiple choice question.
Question: Which drug exhibits a 17.965\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) O=c1[nH]c(O)c(C=Nc2ccc(F)c(Cl)c2)c(=O)[nH]1
b) Cc1nnc(N/N=C/c2c[nH]c3ccccc23)[nH]c1=O
Answer: a. O=c1[nH]c(O)c(C=Nc2ccc(F)c(Cl)c2)c(=O)[nH]1
{#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=c1[nH]c(O)c(C=Nc2ccc(F)c(Cl)c2)c(=O)[nH]1
O=c1[nH]c(O)c(C=Nc2ccc(F)c(Cl)c2)c(=O)[nH]1
5-[(3-chloro-4-fluorophenyl)iminomethyl]-6-hydroxy-1H-pyrimidine-2,4-dione