Task: Answer the multiple-choice question.
Question: Which compound has a 6.311\% 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, b, c, d, or e without using any additional words.
Options:
a. O=C(NNC1=NCCC1)c1ccc(Br)cc1
b. COc1ccc(CCNC(=O)CSc2ccc(-c3cccs3)nn2)cc1OC
c. O=C(NCC1COc2ccccc2O1)c1ccc(Cl)c(S(=O)(=O)N2CCCC2)c1
d. CCOC(=O)N1CCN(CC(=O)Nc2cc3c(cc2C(C)=O)OCO3)CC1
e. O=C(c1ccco1)N1CCN(c2ccc(Cl)cc2)CC1
Answer: a. O=C(NNC1=NCCC1)c1ccc(Br)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(NNC1=NCCC1)c1ccc(Br)cc1
O=C(NNC1=NCCC1)c1ccc(Br)cc1
4-bromo-N'-(3,4-dihydro-2H-pyrrol-5-yl)benzohydrazide