Task: Answer the multiple choice question.
Query: Which compound has a 1.875\% 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, or d without using any additional words.
Options:
a) Cc1ccc(OCC(=O)Nc2ccc3c(c2)OCO3)c(C)c1
b) CCCCC(=O)OCC(=O)Nc1ccc(OC(F)F)cc1
c) O=C(COc1ccc([N+](=O)[O-])cc1)Nc1ccc2c(c1)OCO2
d) CCOc1ccc(NC(=O)C2CC(=O)N3CCCN=C3S2)cc1
Answer: b. CCCCC(=O)OCC(=O)Nc1ccc(OC(F)F)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#}
CCCCC(=O)OCC(=O)Nc1ccc(OC(F)F)cc1
CCCCC(=O)OCC(=O)Nc1ccc(OC(F)F)cc1
[2-[4-(difluoromethoxy)anilino]-2-oxoethyl]pentanoate