- ROCK inhibitors 4: Structure-activity relationship studies of 7-azaindole-based rho kinase (ROCK) inhibitors
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Rho kinase (ROCK) inhibitors are of therapeutic value for the treatment of disorders such as hypertension and glaucoma, and potentially of wider use against diseases such as cancer and multiple sclerosis. We previously reported a series of potent and selective ROCK inhibitors based on a substituted 7-azaindole scaffold. Here we extend the SAR exploration of the 7-azaindole series to identify leads for further evaluation. New compounds such as 16, 17, 19, 21 and 22 showed excellent ROCK potency and protein kinase A (PKA) selectivity, combined with microsome and hepatocyte stability.
- Bandarage, Upul K.,Court, John,Gao, Huai,Nanthakumar, Suganthini,Come, Jon H.,Giroux, Simon,Green, Jeremy
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supporting information
(2021/01/04)
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- Synthesis and antiproliferative activity of thiazolyl-bis-pyrrolo[2,3-b]pyridines and indolyl-thiazolyl-pyrrolo[2,3-c]pyridines, nortopsentin analogues
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Two new series of nortopsentin analogues, in which the imidazole ring of the natural product was replaced by thiazole and indole units were both substituted by 7-azaindole moieties or one indole unit was replaced by a 6-azaindole portion, were efficiently synthesized. Compounds belonging to both series inhibited the growth of HCT-116 colorectal cancer cells at low micromolar concentrations, whereas they did not affect the viability of normal-like intestinal cells. A compound of the former series induced apoptosis, evident as externalization of plasma membrane phosphatidylserine (PS), and changes of mitochondrial trans-membrane potential, while blocking the cell cycle in G2/M phase. In contrast, a derivative of the latter series elicited distinct responses in accordance with the dose. Thus, low concentrations (GI30) induced morphological changes characteristic of autophagic death with massive formation of cytoplasmic acid vacuoles without apparent loss of nuclear material, and with arrest of cell cycle at the G1 phase, whereas higher concentrations (GI70) induced apoptosis with arrest of cell cycle at the G1 phase.
- Carbone, Anna,Parrino, Barbara,Vita, Gloria Di,Attanzio, Alessandro,Span, Virginia,Montalbano, Alessandra,Barraja, Paola,Tesoriere, Luisa,Livrea, Maria Antonia,Diana, Patrizia,Cirrincione, Girolamo
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p. 460 - 492
(2015/02/05)
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- 3-[4-(1H-indol-3-yl)-1,3-thiazol-2-yl]-1H-pyrrolo[2,3-b]pyridines, nortopsentin Analogues with antiproliferative activity
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A new series of nortopsentin analogues, in which the imidazole ring of the natural product was replaced by thiazole and the indole unit bound to position 2 of the thiazole ring was substituted by a 7-azaindole moiety, was efficiently synthesized. Two of t
- Parrino, Barbara,Carbone, Anna,Di Vita, Gloria,Ciancimino, Cristina,Attanzio, Alessandro,Spanò, Virginia,Montalbano, Alessandra,Barraja, Paola,Tesoriere, Luisa,Livrea, Maria Antonia,Diana, Patrizia,Cirrincione, Girolamo
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p. 1901 - 1924
(2015/05/05)
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- PYRIDINONYL PDK1 INHIBITORS
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The present invention provides pyridinonyl PDKl inhibitors and methods of treating cancer using the same.
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- AZAINDOLES USEFUL AS INHIBITORS OF ROCK AND OTHER PROTEIN KINASES
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The present invention relates to compounds useful as inhibitors of protein kinases. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders.
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Page/Page column 193
(2008/06/13)
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- Synthesis of 4-Amino-1H-pyrrolopyridine (1,7-Dideazaadenine) and 1H-Pyrrolopyridin-4-ol (1,7-Dideazahypoxanthine)
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4-Amino-1H-pyrrolopyridine (1,7-dideazaadenine) (5) has been synthesized by the iron and acetic acid reduction of 4-nitro-1H-pyrrolopyridine 7-oxide (13), obtained by nitration of 1H-pyrrolopyridine-3-carboxamide 7-oxide (17).Other nitration reactions in the 1H-pyrrolopyridine 7-oxide series are disclosed.The preparation of 1H-pyrrolopyridin-4-ol (1,7-dideazahypoxanthine) (6) began with the hydrolysis of ethyl 1-benzyl-3-cyano-4-oxo-4,7-dihydro-1H-pyrrolopyridine-5-carboxylate (21) to the 3,5-dicarboxylic acid derivative of 1-benzyl-4-oxo-4,7-dihydro-1H-pyrrolopyridine (22).Decarboxylation of 22 with subsequent debenzylation formed 6.
- Schneller, Stewart W.,Luo, Jiann-Kuan
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p. 4045 - 4048
(2007/10/02)
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