Task: Answer the multiple-choice question.
Question: Which compound exhibits a 1.781\% 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 CC(=O)N1c2ccc(S(=O)(=O)N3CCC(C(=O)N4CCN(c5cccc(C(F)(F)F)c5)CC4)CC3)cc2CC1C
b c1ccc2c(C3=NNC(=NC4CCCCC4)SC3)c[nH]c2c1
Answer: b. c1ccc2c(C3=NNC(=NC4CCCCC4)SC3)c[nH]c2c1
{#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#}
c1ccc2c(C3=NNC(=NC4CCCCC4)SC3)c[nH]c2c1
c1ccc2c(C3=NNC(=NC4CCCCC4)SC3)c[nH]c2c1
N-cyclohexyl-5-(1H-indol-3-yl)-3,6-dihydro-1,3,4-thiadiazin-2-imine