Task: Answer the multiple choice question.
Query: Which compound exhibits a -19.042\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) CC(=Nc1ccc(Br)cc1)c1sc2ccccc2c1O
b.) O=C(COc1ccccc1)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
Answer: b. O=C(COc1ccccc1)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)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(COc1ccccc1)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
O=C(COc1ccccc1)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
oxido-oxo-[4-[4-(2-phenoxyacetyl)piperazine-1-carbonyl]phenyl]azanium