Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 16.330\% 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=c1[nH]c(O)c(N=Nc2ccc3c(c2)OCCO3)c(=O)[nH]1
b. O=C1C(=O)N(CCN2CCOCC2)C(c2cccc(Cl)c2)/C1=C(/O)c1ccc2c(c1)OCO2
Answer: b. O=C1C(=O)N(CCN2CCOCC2)C(c2cccc(Cl)c2)/C1=C(/O)c1ccc2c(c1)OCO2
{#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(=O)N(CCN2CCOCC2)C(c2cccc(Cl)c2)/C1=C(/O)c1ccc2c(c1)OCO2
O=C1C(=O)N(CCN2CCOCC2)C(c2cccc(Cl)c2)/C1=C(/O)c1ccc2c(c1)OCO2
(4Z)-4-[1,3-benzodioxol-5-yl(hydroxy)methylidene]-5-(3-chlorophenyl)-1-(2-morpholin-4-ylethyl)pyrrolidine-2,3-dione