Task: Answer the MCQ question.
Query: Which compound has a -1.650\% 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, or c without using any other words.
Options:
a Fc1ccccc1-n1c(-c2ccc3ccccc3n2)n[nH]c1=S
b COc1ccccc1-c1nn(-c2ccccc2)cc1C(=O)NCC(c1ccco1)N1CCCC1
c CCOC(=O)CN1C(=O)C(CC)Oc2ccc(Cl)cc21
Answer: c. CCOC(=O)CN1C(=O)C(CC)Oc2ccc(Cl)cc21
{#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#}
CCOC(=O)CN1C(=O)C(CC)Oc2ccc(Cl)cc21
CCOC(=O)CN1C(=O)C(CC)Oc2ccc(Cl)cc21
ethyl 2-(6-chloro-2-ethyl-3-oxo-1,4-benzoxazin-4-yl)acetate