Task: Answer the multiple choice question.
Question: Which compound has a -18.406\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CN(c1ncc(C(F)(F)F)cc1Cl)N1C(=O)c2cccc([N+](=O)[O-])c2C1=O
b. CCOC(=O)COc1cc(C)nc2nc(-c3ccc(Cl)cc3)cn12
Answer: b. CCOC(=O)COc1cc(C)nc2nc(-c3ccc(Cl)cc3)cn12
{#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)COc1cc(C)nc2nc(-c3ccc(Cl)cc3)cn12
CCOC(=O)COc1cc(C)nc2nc(-c3ccc(Cl)cc3)cn12
ethyl 2-[2-(4-chlorophenyl)-7-methylimidazo[1,2-a]pyrimidin-5-yl]oxyacetate