Task: Answer the multiple-choice question.
Question: Which compound has a 11.993\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=c1c(Cc2ccc(Cl)cc2)c(O)ccn1Cc1cccc(Cl)c1
b COc1ccc(Nc2nc(C)nc3c2nnn3Cc2ccccc2Cl)c(OC)c1
Answer: a. O=c1c(Cc2ccc(Cl)cc2)c(O)ccn1Cc1cccc(Cl)c1
{#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=c1c(Cc2ccc(Cl)cc2)c(O)ccn1Cc1cccc(Cl)c1
O=c1c(Cc2ccc(Cl)cc2)c(O)ccn1Cc1cccc(Cl)c1
1-[(3-chlorophenyl)methyl]-3-[(4-chlorophenyl)methyl]-4-hydroxypyridin-2-one