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Bender CF, Paradise CL, Lynch VM, Yoshimoto FK, De Brabander JK. A biosynthetically inspired synthesis of (-)-berkelic acid and analogs. Tetrahedron 2018; 74:909-919. [PMID: 29867257 DOI: 10.1016/j.tet.2018.01.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We describe a complete account of our total synthesis and biological evaluation of (-)-berkelic acid and analogs. We delineate a synthetic strategy inspired by a potentially biomimetic union between the natural products spicifernin and pulvilloric acid. After defining optimal parameters, we executed a one-pot silver-mediated in situ dehydration of an isochroman lactol to methyl pulvillorate, the cycloisomerization of a spicifernin-like alkynol to the corresponding exocyclic enol ether, and a subsequent cycloaddition to deliver the tetracyclic core of berkelic acid. Our studies confirm that the original assigned berkelic acid structure is not stable and equilibrates into a mixture of 4 diastereomers, fully characterized by X-ray crystallography. In addition to berkelic acid, C22-epi-berkelic acid, and nor-berkelic acids, we synthesized C26-oxoberkelic acid analogs that were evaluated against human cancer cell lines. In contrast to data reported for natural berkelic acid, our synthetic material and analogs were found to be devoid of activity.
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Affiliation(s)
- Christopher F Bender
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
| | - Christopher L Paradise
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
| | - Vincent M Lynch
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Francis K Yoshimoto
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
| | - Jef K De Brabander
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA
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Corte JR, Fang T, Osuna H, Pinto DJP, Rossi KA, Myers JE, Sheriff S, Lou Z, Zheng JJ, Harper TW, Bozarth JM, Wu Y, Luettgen JM, Seiffert DA, Decicco CP, Wexler RR, Quan ML. Structure-Based Design of Macrocyclic Factor XIa Inhibitors: Discovery of the Macrocyclic Amide Linker. J Med Chem 2017; 60:1060-1075. [DOI: 10.1021/acs.jmedchem.6b01460] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- James R. Corte
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Tianan Fang
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Honey Osuna
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Donald J. P. Pinto
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Karen A. Rossi
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Joseph E. Myers
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Steven Sheriff
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Zhen Lou
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Joanna J. Zheng
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Timothy W. Harper
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Jeffrey M. Bozarth
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Yiming Wu
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Joseph M. Luettgen
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Dietmar A. Seiffert
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Carl P. Decicco
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Ruth R. Wexler
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
| | - Mimi L. Quan
- Research and Development, Bristol-Myers Squibb Company, P.O. Box
5400, Princeton, New Jersey 08543, United States
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Joy MN, Savitha B, Sajith AM, Bodke YD, Venkatesh T, Khader KA, Padusha MSA, Muralidharan A. A facile access for the synthesis of some C-2 substituted imidazopyrazines by utilizing the palladium catalyzed Suzuki cross-coupling reaction under microwave irradiation. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Sıdır YG, Sıdır İ. Quantitative structure activity relationships of cytotoxicity effect on various cancer cells of some imidazo[1,2-?]pyrazine derivatives. ACTA ACUST UNITED AC 2015. [DOI: 10.17678/beuscitech.47133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Goel R, Luxami V, Paul K. Recent advances in development of imidazo[1,2-a]pyrazines: synthesis, reactivity and their biological applications. Org Biomol Chem 2015; 13:3525-55. [DOI: 10.1039/c4ob01380h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The synthesis, reactivity and multifarious biological activities at the different positions of imidazo[1,2-a]pyrazines are concisely discussed in this review.
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Affiliation(s)
- Richa Goel
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala 147004
- India
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Hangeland JJ, Friends TJ, Rossi KA, Smallheer JM, Wang C, Sun Z, Corte JR, Fang T, Wong PC, Rendina AR, Barbera FA, Bozarth JM, Luettgen JM, Watson CA, Zhang G, Wei A, Ramamurthy V, Morin PE, Bisacchi GS, Subramaniam S, Arunachalam P, Mathur A, Seiffert DA, Wexler RR, Quan ML. Phenylimidazoles as Potent and Selective Inhibitors of Coagulation Factor XIa with in Vivo Antithrombotic Activity. J Med Chem 2014; 57:9915-32. [DOI: 10.1021/jm5010607] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jon J. Hangeland
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Todd J. Friends
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Karen A. Rossi
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Joanne M. Smallheer
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Cailan Wang
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Zhong Sun
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - James R. Corte
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Tianan Fang
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Pancras C. Wong
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Alan R. Rendina
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Frank A. Barbera
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Jeffrey M. Bozarth
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Joseph M. Luettgen
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Carol A. Watson
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Ge Zhang
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Anzhi Wei
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Vidhyashankar Ramamurthy
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Paul E. Morin
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Gregory S. Bisacchi
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Srinath Subramaniam
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Piramanayagam Arunachalam
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Arvind Mathur
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Dietmar A. Seiffert
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Ruth R. Wexler
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
| | - Mimi L. Quan
- Research and Development, Bristol-Myers Squibb,
P.O. Box 5400, Princeton, New Jersey 08543, United States
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Guchhait SK, Kandekar S, Kashyap M, Taxak N, Bharatam PV. C–H Bond Functionalization Under Metalation–Deprotonation Process: Regioselective Direct Arylation of 3-Aminoimidazo[1,2-a]pyrazine. J Org Chem 2012; 77:8321-8. [DOI: 10.1021/jo301065s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sankar K. Guchhait
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), S. A. S. Nagar, Mohali, 160062, Punjab, India
| | - Somnath Kandekar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), S. A. S. Nagar, Mohali, 160062, Punjab, India
| | - Maneesh Kashyap
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), S. A. S. Nagar, Mohali, 160062, Punjab, India
| | - Nikhil Taxak
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), S. A. S. Nagar, Mohali, 160062, Punjab, India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), S. A. S. Nagar, Mohali, 160062, Punjab, India
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Sıdır İ, Sıdır YG, Kayagil İ. Conformational stability, the spectroscopic (FT-IR and UV), first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of 6,8-diphenylimidazo[1,2-α]pyrazine molecule by ab initio HF and density functional methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 81:339-352. [PMID: 21782498 DOI: 10.1016/j.saa.2011.06.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 06/01/2011] [Accepted: 06/13/2011] [Indexed: 05/31/2023]
Abstract
The conformational analysis of 6,8-diphenylimidazo[1,2-α]pyrazine molecule (abbreviated as 68DIP) was performed by using B3LYP/6-31G(d) level of theory to find the most stable form. Two staggered stable conformers were observed on the torsional potential energy surface. The equilibrium geometry, bonding features and vibrational frequencies of 68DIP have been investigated by using the DFT (B3LYP) and HF methods for the lowest energy conformer. The first order hyperpolarizability (β(total)) of this molecular system and related properties (β, μ, <α> and Δα) are calculated using HF/6-311++G(d,p) and B3LYP/6-311++G(d,p) methods based on the finite-field approach. Stability of the molecule arising from hyperconjugative interactions, charge delocalization and C-H⋯N intramolecular hydrogen-bond-like weak interaction has been analyzed using natural bond orbital (NBO) analysis by using B3LYP/6-311++G(d,p) method. The results show that electron density (ED) in the σ* and π* antibonding orbitals and second order delocalization energies E((2)) confirm the occurrence of intramolecular charge transfer (ICT) within the molecule. UV-vis spectrum of the compound was recorded and electronic properties, such as HOMO, LUMO energies, excitation energies and wavelength were performed by TD-DFT/B3LYP, CIS and TD-HF methods by using 6-311++G(d,p) basis set. Finally, the calculation results were applied to simulated infrared spectra of the title compound which show good agreement with observed spectra.
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Affiliation(s)
- İsa Sıdır
- Bitlis Eren University, Faculty of Arts & Science, Department of Physics, 13000 Bitlis, Turkey.
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Sıdır I, Sıdır YG. Ground state and excited state dipole moments of 6,8-diphenylimidazo[1,2-α]pyrazine determined from solvatochromic shifts of absorption and fluorescence spectra. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1220-1225. [PMID: 21592851 DOI: 10.1016/j.saa.2011.04.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 03/19/2011] [Accepted: 04/15/2011] [Indexed: 05/30/2023]
Abstract
Electronic absorption and dual fluorescence spectra of 6,8-diphenylimidazo[1,2-α]pyrazine (68DIP) was recorded in various solvents with different polarity at room temperature. The ground state (μg) and the excited state (μg) dipole moments of 68DIP were estimated from solvatochromic shifts of absorption and fluorescence spectra as a function of the dielectric constant (ɛ) and refractive index (n). The results show that the value of excited state dipole moment in SE: μeSE=2.8772 D and twisted intramolecular charge transfer (TICT) excited equilibrated state dipole moment value of μeLE=2.9744 D was found. The solvent dependent spectral shifts in absorption and fluorescence spectra were analyzed by the polarizability-polarity and Kamlet-Taft parameters.
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Affiliation(s)
- Isa Sıdır
- Bitlis Eren University, Faculty of Sciences and Arts, Department of Physics, 13000 Bitlis, Turkey.
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Microwave supported synthesis of some novel 1,3-Diarylpyrazino[1,2-a]benzimidazole derivatives and investigation of their anticancer activities. Eur J Med Chem 2011; 46:411-6. [DOI: 10.1016/j.ejmech.2010.11.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 10/15/2010] [Accepted: 11/04/2010] [Indexed: 11/18/2022]
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13
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Sharma S, Kundu B. Application of the Modified Pictet−Spengler Cyclization Reaction for the Preparation of an Imidazopyrazine Ring: Synthesis of new Pyrido- and Pyrimido-imidazopyrazines. ACTA ACUST UNITED AC 2009; 11:720-31. [PMID: 19435370 DOI: 10.1021/cc9000345] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sunil Sharma
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Lucknow 226001, India
| | - Bijoy Kundu
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Lucknow 226001, India
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Mowery BP, Prasad V, Kenesky CS, Angeles AR, Taylor LL, Feng JJ, Chen WL, Lin A, Cheng FC, Smith AB, Hirschmann R. Catechol: A Minimal Scaffold for Non-Peptide Peptidomimetics of thei+ 1 andi+ 2 Positions of the β-Turn of Somatostatin. Org Lett 2006; 8:4397-400. [PMID: 16986909 DOI: 10.1021/ol061488x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The design, synthesis, and evaluation of a series of catechol-based non-peptide peptidomimetics of the peptide hormone somatostatin have been achieved. These ligands comprise the simplest known non-peptide mimetics of the i + 1 and i + 2 positions of the somatostatin beta-turn. Incorporation of an additional side chain to include the i position of the beta-turn induces a selective 9-fold affinity enhancement at the sst2 receptor.
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Affiliation(s)
- Brendan P Mowery
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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Contour-Galcéra MO, Sidhu A, Plas P, Roubert P. 3-Thio-1,2,4-triazoles, novel somatostatin sst2/sst5 agonists. Bioorg Med Chem Lett 2005; 15:3555-9. [PMID: 15982879 DOI: 10.1016/j.bmcl.2005.05.061] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2005] [Revised: 05/12/2005] [Accepted: 05/17/2005] [Indexed: 11/16/2022]
Abstract
Novel 3-thio-1,2,4-triazoles have been obtained via a solution-phase parallel synthesis strategy, affording potent non-peptidic human somatostatin receptor subtypes 2 and 5 agonists.
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Demirayak S, Kayagil I. Synthesis of some 6,8-diarylimidazo[1,2-a]pyrazine derivatives by using either reflux or microwave irradiation method and investigation of their anticancer activities. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420224] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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