Task: Answer the multiple choice question.
Query: Which compound has a 1.287\% 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. CC1CCN(C(=O)Cn2nnnc2CN2CCOCC2)CC1
b. CCn1c(=O)n(CC)c2cc(N3CCCC3)c(NC(=O)c3cc(Br)ccc3OC)cc21
c. COc1cc(C(F)(F)F)c(C(=O)NCc2cccc(Cl)c2)cn1
Answer: b. CCn1c(=O)n(CC)c2cc(N3CCCC3)c(NC(=O)c3cc(Br)ccc3OC)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#}
CCn1c(=O)n(CC)c2cc(N3CCCC3)c(NC(=O)c3cc(Br)ccc3OC)cc21
CCn1c(=O)n(CC)c2cc(N3CCCC3)c(NC(=O)c3cc(Br)ccc3OC)cc21
5-bromo-N-(1,3-diethyl-2-oxo-6-pyrrolidin-1-ylbenzimidazol-5-yl)-2-methoxybenzamide