Task: Answer the MCQ question.
Question: Which compound exhibits a 2.700\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCc1nn(CC(=O)NCc2ccccc2Cl)c(=O)c2cccn12
[b] COC(=O)CC1C(=O)NCCN1C(=O)c1ccc([N+](=O)[O-])cc1
[c] Cc1oc2ccc(OCc3c(F)cccc3Cl)cc2c1C(=O)O
[d] O=C(NCC(c1ccco1)N1CCc2ccccc2C1)C(=O)Nc1ccccc1
Answer: b. COC(=O)CC1C(=O)NCCN1C(=O)c1ccc([N+](=O)[O-])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#}
COC(=O)CC1C(=O)NCCN1C(=O)c1ccc([N+](=O)[O-])cc1
COC(=O)CC1C(=O)NCCN1C(=O)c1ccc([N+](=O)[O-])cc1
methyl 2-[1-(4-nitrobenzoyl)-3-oxopiperazin-2-yl]acetate