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Plas A, Martin C, Joubert N, Viaud-Massuard MC. Palladium-Catalyzed Amination of N-Free 2-Chloro-7-azaindole. Org Lett 2015; 17:4710-3. [DOI: 10.1021/acs.orglett.5b02173] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aurélie Plas
- GICC
UMR 7292 CNRS-Université
de Tours, Equipe 4 Innovation Moléculaire et Thérapeutique,
UFR Sciences Pharmaceutiques, 31 avenue
Monge, 37200 Tours, France
| | - Camille Martin
- GICC
UMR 7292 CNRS-Université
de Tours, Equipe 4 Innovation Moléculaire et Thérapeutique,
UFR Sciences Pharmaceutiques, 31 avenue
Monge, 37200 Tours, France
| | - Nicolas Joubert
- GICC
UMR 7292 CNRS-Université
de Tours, Equipe 4 Innovation Moléculaire et Thérapeutique,
UFR Sciences Pharmaceutiques, 31 avenue
Monge, 37200 Tours, France
| | - Marie-Claude Viaud-Massuard
- GICC
UMR 7292 CNRS-Université
de Tours, Equipe 4 Innovation Moléculaire et Thérapeutique,
UFR Sciences Pharmaceutiques, 31 avenue
Monge, 37200 Tours, France
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Surasani R, Kalita D, Rao AVD, Chandrasekhar KB. Palladium-catalyzed C-N and C-O bond formation of N-substituted 4-bromo-7-azaindoles with amides, amines, amino acid esters and phenols. Beilstein J Org Chem 2012; 8:2004-18. [PMID: 23209536 PMCID: PMC3511036 DOI: 10.3762/bjoc.8.227] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 10/26/2012] [Indexed: 01/15/2023] Open
Abstract
Simple and efficient procedures for palladium-catalyzed cross-coupling reactions of N-substituted 4-bromo-7-azaindole (1H-pyrrole[2,3-b]pyridine), with amides, amines, amino acid esters and phenols through C-N and C-O bond formation have been developed. The C-N cross-coupling reaction of amides, amines and amino acid esters takes place rapidly by using the combination of Xantphos, Cs(2)CO(3), dioxane and palladium catalyst precursors Pd(OAc)(2)/Pd(2)(dba)(3). The combination of Pd(OAc)(2), Xantphos, K(2)CO(3) and dioxane was found to be crucial for the C-O cross-coupling reaction. This is the first report on coupling of amides, amino acid esters and phenols with N-protected 4-bromo-7-azaindole derivatives.
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Affiliation(s)
- Rajendra Surasani
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
- Department of Chemistry, Institute of Science and Technology, JNTU University of Anantapur, Anantapur 515002, India
| | - Dipak Kalita
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
| | - A V Dhanunjaya Rao
- Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Miyapur, Hyderabad 50049, India
| | - K B Chandrasekhar
- Department of Chemistry, Institute of Science and Technology, JNTU University of Anantapur, Anantapur 515002, India
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McHardy T, Caldwell JJ, Cheung KM, Hunter LJ, Taylor K, Rowlands M, Ruddle R, Henley A, de Haven Brandon A, Valenti M, Davies TG, Fazal L, Seavers L, Raynaud FI, Eccles SA, Aherne GW, Garrett MD, Collins I. Discovery of 4-amino-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamides as selective, orally active inhibitors of protein kinase B (Akt). J Med Chem 2010; 53:2239-49. [PMID: 20151677 PMCID: PMC2832868 DOI: 10.1021/jm901788j] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Protein kinase B (PKB or Akt) is an important component of intracellular signaling pathways regulating growth and survival. Signaling through PKB is frequently deregulated in cancer, and inhibitors of PKB therefore have potential as antitumor agents. The optimization of lipophilic substitution within a series of 4-benzyl-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-amines provided ATP-competitive, nanomolar inhibitors with up to 150-fold selectivity for inhibition of PKB over the closely related kinase PKA. Although active in cellular assays, compounds containing 4-amino-4-benzylpiperidines underwent metabolism in vivo, leading to rapid clearance and low oral bioavailability. Variation of the linker group between the piperidine and the lipophilic substituent identified 4-amino-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamides as potent and orally bioavailable inhibitors of PKB. Representative compounds modulated biomarkers of signaling through PKB in vivo and strongly inhibited the growth of human tumor xenografts in nude mice at well-tolerated doses.
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Affiliation(s)
- Tatiana McHardy
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
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11
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Caldwell JJ, Davies TG, Donald A, McHardy T, Rowlands MG, Aherne GW, Hunter LK, Taylor K, Ruddle R, Raynaud FI, Verdonk M, Workman P, Garrett MD, Collins I. Identification of 4-(4-Aminopiperidin-1-yl)-7H-pyrrolo[2,3-d]pyrimidines as Selective Inhibitors of Protein Kinase B through Fragment Elaboration. J Med Chem 2008; 51:2147-57. [DOI: 10.1021/jm701437d] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John J. Caldwell
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Thomas G. Davies
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Alastair Donald
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Tatiana McHardy
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Martin G. Rowlands
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - G. Wynne Aherne
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Lisa K. Hunter
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Kevin Taylor
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Ruth Ruddle
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Florence I. Raynaud
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Marcel Verdonk
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Paul Workman
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Michelle D. Garrett
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
| | - Ian Collins
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, U.K., and Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K
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