Literature summary for 2.7.11.21 extracted from

Sato, Y.; Onozaki, Y.; Sugimoto, T.; Kurihara, H.; Kamijo, K.; Kadowaki, C.; Tsujino, T.; Watanabe, A.; Otsuki, S.; Mitsuya, M.; Iida, M.; Haze, K.; Machida, T.; Nakatsuru, Y.; Komatani, H.; Kotani, H.; Iwasawa, Y.
Imidazopyridine derivatives as potent and selective polo-like kinase (PLK) inhibitors (2009), Bioorg. Med. Chem. Lett., 19, 4673-4678.

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Application

Application	Comment	Organism
medicine	inhibition of PLK1 activity in cancer cells causes mitotic arrest and finally induces strong cell-killing effect	Mammalia

Inhibitors

Inhibitors	Comment	Organism
3-(1-[2-chloro-4-[(3-hydroxypyrrolidin-1-yl)methyl]phenyl]ethoxy)-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chloro-4-[[(1-methylethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chloro-4-[[(2-hydroxy-1,1-dimethylethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chloro-4-[[(2-hydroxyethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chloro-4-[[(3-hydroxypropyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chlorophenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-(2-chlorophenyl)ethoxy]-5-[6-(hydroxymethyl)imidazo[1,2-a]pyridin-3-yl]thiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(3-oxopiperazin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(4-fluoropiperidin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(4-hydroxypiperidin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(4-methylpiperazin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(cyclopentylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(cyclopropylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(dimethylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(ethylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[2-chloro-4-[(methylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-(difluoromethoxy)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	tested in rat xenograft model	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-(difluoromethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-chlorophenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-cyclopropylphenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-fluorophenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-methylphenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(1S)-1-(2-chlorophenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[(2-chlorobenzyl)oxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
3-[1-(2-chlorophenyl)ethoxy]-5-[7-(hydroxymethyl)imidazo[1,2-a]pyridin-3-yl]thiophene-2-carboxamide	-	Mammalia
3-[1-[2-chloro-5-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide	-	Mammalia
5-(1-methyl-1H-imidazol-5-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-(1H-benzimidazol-1-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-(2-amino-1,3-thiazol-5-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-imidazo[1,2-a]pyridin-3-yl-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-pyrazolo[1,5-a]pyridin-3-yl-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-[2-(phenylamino)-1,3-thiazol-5-yl]-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
5-[2-[(phenylcarbonyl)amino]-1,3-thiazol-5-yl]-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide	-	Mammalia
BI 2536	-	Mammalia
GSK 461364	-	Mammalia

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
ATP + a protein	Mammalia	-	ADP + a phosphoprotein	-	?

Organism

Organism	UniProt	Comment	Textmining
Mammalia	-	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
ATP + a protein	-	Mammalia	ADP + a phosphoprotein	-	?

Synonyms

Synonyms	Comment	Organism
PLK	-	Mammalia
polo-like kinase	-	Mammalia

Cofactor

Cofactor	Comment	Organism	Structure
ATP	-	Mammalia

IC50 Value

IC50 Value	IC50 Value Maximum	Comment	Organism	Inhibitor
0.0000049	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000007	-	-	Mammalia	3-[(1R)-1-(2-chlorophenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.0000073	-	-	Mammalia	3-[(1R)-1-(2-chlorophenyl)ethoxy]-5-[6-(hydroxymethyl)imidazo[1,2-a]pyridin-3-yl]thiophene-2-carboxamide
0.0000098	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-(difluoromethoxy)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000012	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(3-oxopiperazin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000012	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(cyclopropylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000013	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(4-fluoropiperidin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000016	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000016	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(methylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000017	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(4-methylpiperazin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000019	-	-	Mammalia	3-[(1R)-1-(2-chloro-4-[[(3-hydroxypropyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.00002	-	-	Mammalia	3-(1-[2-chloro-4-[(3-hydroxypyrrolidin-1-yl)methyl]phenyl]ethoxy)-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.00002	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-(difluoromethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000021	-	-	Mammalia	3-[(1R)-1-(2-chloro-4-[[(2-hydroxyethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000021	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(ethylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000021	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-chlorophenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000022	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(dimethylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000022	-	-	Mammalia	5-imidazo[1,2-a]pyridin-3-yl-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.000023	-	-	Mammalia	3-[(1R)-1-(2-chloro-4-[[(2-hydroxy-1,1-dimethylethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000025	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(cyclopentylamino)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000027	-	-	Mammalia	3-[(1R)-1-[2-chloro-4-[(4-hydroxypiperidin-1-yl)methyl]phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000028	-	-	Mammalia	3-[(1R)-1-(2-chloro-4-[[(1-methylethyl)amino]methyl]phenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000035	-	-	Mammalia	3-[(2-chlorobenzyl)oxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000035	-	-	Mammalia	5-(1H-benzimidazol-1-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.000039	-	-	Mammalia	3-[1-[2-chloro-5-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000046	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-fluorophenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000088	-	-	Mammalia	3-[(1R)-1-[2-(hydroxymethyl)phenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.000092	-	-	Mammalia	3-[1-(2-chlorophenyl)ethoxy]-5-[7-(hydroxymethyl)imidazo[1,2-a]pyridin-3-yl]thiophene-2-carboxamide
0.00013	-	-	Mammalia	5-pyrazolo[1,5-a]pyridin-3-yl-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.00015	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-methylphenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.00021	-	-	Mammalia	3-[(1R)-1-[4-[(tert-butylamino)methyl]-2-cyclopropylphenyl]ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.0003	-	-	Mammalia	3-[(1S)-1-(2-chlorophenyl)ethoxy]-5-imidazo[1,2-a]pyridin-3-ylthiophene-2-carboxamide
0.00043	-	-	Mammalia	5-(1-methyl-1H-imidazol-5-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.0021	-	-	Mammalia	5-[2-[(phenylcarbonyl)amino]-1,3-thiazol-5-yl]-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.003	-	larger than 0.003	Mammalia	5-(2-amino-1,3-thiazol-5-yl)-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide
0.003	-	larger than 0.003	Mammalia	5-[2-(phenylamino)-1,3-thiazol-5-yl]-3-[[2-(trifluoromethyl)benzyl]oxy]thiophene-2-carboxamide

Expression

Organism	Comment	Expression
Mammalia	PLK1 is overexpressed in many clinical cancer samples	up

General Information

General Information	Comment	Organism
physiological function	PLK1 participates in multiple steps in mitosis	Mammalia