Task: Answer the MCQ question.
Query: Which drug exhibits a -20.225\% human ether-à-go-go related gene (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] COCCCNC(=O)CSc1nc2ccc(N3CCOCC3)cc2c(=O)n1CCc1ccccc1
[b] O=C(NCCN1CCN(c2ccc([N+](=O)[O-])cc2)CC1)NCc1ccccc1
Answer: b. O=C(NCCN1CCN(c2ccc([N+](=O)[O-])cc2)CC1)NCc1ccccc1
{#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(NCCN1CCN(c2ccc([N+](=O)[O-])cc2)CC1)NCc1ccccc1
O=C(NCCN1CCN(c2ccc([N+](=O)[O-])cc2)CC1)NCc1ccccc1
1-benzyl-3-[2-[4-(4-nitrophenyl)piperazin-1-yl]ethyl]urea