Task: Answer the multiple-choice question.
Question: Which compound exhibits a -6.567\% 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) CCN1C(=NCC2CC2)N[C@@H](c2cccc(C(F)(F)F)c2)C(C(=O)OC)=C1C
(b) O=c1oc2ccccc2cc1-c1nc(-c2ccccc2)no1
Answer: b. O=c1oc2ccccc2cc1-c1nc(-c2ccccc2)no1
{#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=c1oc2ccccc2cc1-c1nc(-c2ccccc2)no1
O=c1oc2ccccc2cc1-c1nc(-c2ccccc2)no1
3-(3-phenyl-1,2,4-oxadiazol-5-yl)chromen-2-one