Task: Answer the MCQ question.
Query: Which compound exhibits a 2.229\% 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) COc1ccccc1NC(=O)c1nn(-c2ccc(OC(F)(F)F)cc2)ccc1=O
(b) O=C(C1COc2ccccc2O1)N1CCN(Cc2ccc(Br)cc2F)CC1
Answer: b. O=C(C1COc2ccccc2O1)N1CCN(Cc2ccc(Br)cc2F)CC1
{#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(C1COc2ccccc2O1)N1CCN(Cc2ccc(Br)cc2F)CC1
O=C(C1COc2ccccc2O1)N1CCN(Cc2ccc(Br)cc2F)CC1
[4-[(4-bromo-2-fluorophenyl)methyl]piperazin-1-yl]-(2,3-dihydro-1,4-benzodioxin-3-yl)methanone