Task: Answer the MCQ question.
Query: Which compound exhibits a -16.008\% 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 additional words.
Options:
a. C=CCn1c(SCc2ccccc2C#N)nnc1-c1ccccc1O
b. COc1cc(/C=N/NC(=O)NC23CC4CC(CC(C4)C2)C3)ccc1OCC(N)=O
Answer: a. C=CCn1c(SCc2ccccc2C#N)nnc1-c1ccccc1O
{#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#}
C=CCn1c(SCc2ccccc2C#N)nnc1-c1ccccc1O
C=CCn1c(SCc2ccccc2C#N)nnc1-c1ccccc1O
2-[[5-(2-hydroxyphenyl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanylmethyl]benzonitrile