Task: Answer the multiple choice question.
Question: Which compound exhibits a 0.634\% 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 or b without using any other words.
Options:
a) CCN1CCN(Cc2ccc(OC(F)(F)F)cc2)CC1
b) COc1ccc(NC(=O)/C=C/c2cc(Br)ccc2OC)cc1
Answer: a. CCN1CCN(Cc2ccc(OC(F)(F)F)cc2)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#}
CCN1CCN(Cc2ccc(OC(F)(F)F)cc2)CC1
CCN1CCN(Cc2ccc(OC(F)(F)F)cc2)CC1
1-ethyl-4-[[4-(trifluoromethoxy)phenyl]methyl]piperazine