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Kitamura T, Shiroshita S, Takahashi D, Toshima K. 2-Naphthol Moiety of Neocarzinostatin Chromophore as a Novel Protein-Photodegrading Agent and Its Application as a H 2 O 2 -Activatable Photosensitizer. Chemistry 2020; 26:14351-14358. [PMID: 32533610 DOI: 10.1002/chem.202000833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/08/2020] [Indexed: 11/09/2022]
Abstract
A 2-naphthol derivative 2 corresponding to the aromatic ring moiety of neocarzinostatin chromophore was found to degrade proteins under photo-irradiation with long-wavelength UV light without any additives under neutral conditions. Structure-activity relationship studies of the derivative revealed that methylation of the hydroxyl group at the C2 position of 2 significantly suppressed its photodegradation ability. Furthermore, a purpose-designed synthetic tumor-related biomarker, a H2 O2 -activatable photosensitizer 8 possessing a H2 O2 -responsive arylboronic ester moiety conjugated to the hydroxyl group at the C2 position of 2, showed significantly lower photodegradation ability compared to 2. However, release of the 2 from 8 by reaction with H2 O2 regenerated the photodegradation ability. Compound 8 exhibited selective photo-cytotoxicity against high H2 O2 -expressing cancer cells upon irradiation with long-wavelength UV light.
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Affiliation(s)
- Takashi Kitamura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Saori Shiroshita
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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2
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Geenen SR, Presser L, Hölzel T, Ganter C, Müller TJJ. Electronic Finetuning of 8-Methoxy Psoralens by Palladium-Catalyzed Coupling: Acidochromicity and Solvatochromicity. Chemistry 2020; 26:8064-8075. [PMID: 32048795 PMCID: PMC7383860 DOI: 10.1002/chem.201905676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Indexed: 12/21/2022]
Abstract
Differently 5‐substituted 8‐methoxypsoralens can be synthesized by an efficient synthetic route with various cross‐coupling methodologies, such as Suzuki, Sonogashira and Heck reaction. Compared to previously synthesized psoralens, thereby promising daylight absorbing compounds as potentially active agents against certain skin diseases can be readily accessed. Extensive investigations of all synthesized psoralen derivatives reveal fluorescence in the solid state as well as several distinctly emissive derivatives in solution. Donor‐substituted psoralens exhibit remarkable photophysical properties, such as high fluorescence quantum yields and pronounced emission solvatochromicity and acidochromicity, which were scrutinized by Lippert–Mataga and Stern–Volmer plots. The results indicate that the compounds exceed the limit of visible light, a significant factor for potential applications as an active agent. In addition, (TD)DFT calculations were performed to elucidate the underlying electronic structure and to assign experimentally obtained data.
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Affiliation(s)
- Sarah R Geenen
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Lysander Presser
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Torsten Hölzel
- Institut für Anorganische Chemie und Strukturchemie I, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Christian Ganter
- Institut für Anorganische Chemie und Strukturchemie I, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
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3
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Dachavaram SS, Penthala NR, Calahan JL, Munson EJ, Crooks PA. Highly sulphated cellulose: a versatile, reusable and selective desilylating agent for deprotection of alcoholic TBDMS ethers. Org Biomol Chem 2018; 16:6057-6062. [PMID: 30090907 DOI: 10.1039/c8ob01438h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild, efficient and rapid protocol was developed for the deprotection of alcoholic TBDMS ethers using a recyclable, eco-friendly highly sulphated cellulose sulphate acid catalyst in methanol. This acid catalyst selectively cleaves alcoholic TBDMS ethers in bis-TBDMS ethers containing both alcoholic and phenolic TBDMS ether moieties.
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Affiliation(s)
- Soma Shekar Dachavaram
- Department of Pharmaceutical Sciences College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
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4
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Lin CC, Hung SM, Lu KC, Cheng CC. pH Dependent Thermal Stabilization of DNA by Glcβ(1→3)GlcNAcβ1→STol. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200400098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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5
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Itoh T. Development of Environmental Benign Organic Synthesis based on Advanced Biocatalysis Processes Regulated by a Chemical Method. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
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6
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Shah STA, Singh S, Guiry PJ. A Novel, Chemoselective and Efficient Microwave-Assisted Deprotection of Silyl Ethers with Selectfluor. J Org Chem 2009; 74:2179-82. [PMID: 19199653 DOI: 10.1021/jo802494t] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Syed Tasadaque A. Shah
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Surendra Singh
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
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7
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Shah STA, Guiry PJ. The chemoselective and efficient deprotection of silyl ethers using trimethylsilyl bromide. Org Biomol Chem 2008; 6:2168-72. [DOI: 10.1039/b803949f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Sasmal PK, Patra AK, Nethaji M, Chakravarty AR. DNA Cleavage by New Oxovanadium(IV) Complexes of N-Salicylidene α-Amino Acids and Phenanthroline Bases in the Photodynamic Therapy Window. Inorg Chem 2007; 46:11112-21. [DOI: 10.1021/ic7011793] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pijus K. Sasmal
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ashis K. Patra
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Munirathinam Nethaji
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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Dhar S, Nethaji M, Chakravarty AR. DNA Cleavage on Photoexposure at the d−d Band in Ternary Copper(II) Complexes Using Red-Light Laser. Inorg Chem 2006; 45:11043-50. [PMID: 17173464 DOI: 10.1021/ic060328e] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Ternary copper(II) complexes [Cu(L1)B](ClO4) (1, 2) and [Cu(L2)B](ClO4) (3, 4), where HL1 and HL2 are tridentate NSO- and ONO-donor Schiff bases and B is a heterocyclic base, viz. dipyrido[3,2-d:2',3'-f]quinoxaline (dpq, 1 and 3) or dipyrido[3,2-a:2',3'-c]phenazine (dppz, 2 and 4), were prepared and their DNA binding and photoinduced DNA cleavage activity studied. Complex 1, structurally characterized by single-crystal X-ray crystallography, shows an axially elongated square-pyramidal (4 + 1) coordination geometry in which the monoanionic L1 binds at the equatorial plane. The NN-donor dpq ligand exhibits an axial-equatorial binding mode. The complexes display good binding propensity to calf thymus DNA, giving a relative order 2 (NSO-dppz) > 4 (ONO-dppz) > 1 (NSO-dpq) > 3 (ONO-dpq). They cleave supercoiled pUC19 DNA to its nicked circular form when treated with 3-mercaptopropionic acid (MPA) by formation of hydroxyl radicals as the cleavage active species under dark reaction conditions. The photoinduced DNA cleavage activity of the complexes was investigated using UV radiation of 365 nm and red light of 633, 647.1, and 676.4 nm (CW He-Ne and Ar-Kr mixed gas ion laser sources) in the absence of MPA. Complexes 1 and 2, having photoactive NSO-donor Schiff base and dpq/dppz ligands, show dual photosensitizing effects involving both the photoactive ligands in the ternary structure with significantly better cleavage properties when compared to those of 3 and 4, having only photoactive dpq/dppz ligands. Involvement of singlet oxygen in the light-induced DNA cleavage reactions is proposed. A significant enhancement of the red-light-induced DNA cleavage activity is observed for the dpq and dppz complexes containing the sulfur ligand when compared to their earlier reported phen (1,10-phenanthroline) analogue. Enhancement of the cleavage activity on photoexposure at the d-d band indicates the occurrence of metal-assisted photosensitization processes involving the LMCT and d-d band in the ternary structure.
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Affiliation(s)
- Shanta Dhar
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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11
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Ninomiya K, Tanimoto K, Ishida N, Horii D, Sisido M, Itoh T. Synthesis of novel gem-difluorinatedcyclopropane hybrids: Applications for DNA cleavage agents switched by photo irradiation. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2005.12.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Katritzky AR, Singh SK, Cai C, Bobrov S. Direct Synthesis of Esters and Amides from Unprotected Hydroxyaromatic and -aliphatic Carboxylic Acids. J Org Chem 2006; 71:3364-74. [PMID: 16626115 DOI: 10.1021/jo052293q] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile method for the activation of hydroxy-substituted carboxylic acids using benzotriazole chemistry without prior protection of the hydroxy substituents is presented. The N-acylbenzotriazole intermediates 2a-g, 6a-d, and 9a-c have been used for high-yielding synthesis of both aliphatic (3a-l) and aromatic (7a-h, 10a-f) hydroxy carboxamides. High yields of aromatic hydroxy esters 12a-h and 13a-i were obtained using either neat alcohols in neutral microwave conditions or nucleophilic alkoxides and the intermediate N-(arylacyl)benzotriazoles. Moderate yields were obtained in the case of aliphatic hydroxy esters 11a,b and thiolesters 11e-g from the intermediates 2a-c.
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Affiliation(s)
- Alan R Katritzky
- Center for Heterocyclic Compounds, University of Florida, Department of Chemistry, Gainesville, Florida 32611-7200, USA.
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13
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Hackenberger CPR, O'Reilly MK, Imperiali B. Improving Glycopeptide Synthesis: A Convenient Protocol for the Preparation of β-Glycosylamines and the Synthesis of Glycopeptides. J Org Chem 2005; 70:3574-8. [PMID: 15844993 DOI: 10.1021/jo047801v] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] Herein we apply a recently introduced protocol using ammonium carbamate in methanol to the amination of crude chitobiose leading to 1,beta-aminochitobiose. This simple, one-step procedure allows a facile preparation of unstable glycosylamines in contrast to the commonly implemented ammonium bicarbonate based amination of water-soluble carbohydrates. The new amination protocol leads to an improved synthesis of the key chitobiosyl-asparagine building block for the SPPS of glycopeptides. The utility of the method is demonstrated with the synthesis of a 39-amino acid glycoprotein.
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Warren JD, Miller JS, Keding SJ, Danishefsky SJ. Toward fully synthetic glycoproteins by ultimately convergent routes: a solution to a long-standing problem. J Am Chem Soc 2004; 126:6576-8. [PMID: 15161285 DOI: 10.1021/ja0491836] [Citation(s) in RCA: 196] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method is disclosed for the convergent synthesis of multiply glycosylated peptides. The approach centers on a convergent technique for generating masked, complex glycopeptide-containing C-terminal acyl donors. Activation of the latent donor in situ and use directly in segment coupling with a second peptide bearing a complex carbohydrate produces a completely unprotected, bifunctional glycopeptide. The system demonstrates a minimum level of hydrolysis and epimerization at the C-terminal amino acid residue of the acyl donor during fully convergent segment coupling and is therefore a powerful tool for the synthesis of glycoproteins.
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Affiliation(s)
- J David Warren
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, USA
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15
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16
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Toshima K, Ozawa T, Kimura T, Matsumura S. The significant effect of the carbohydrate structures on the DNA photocleavage of the quinoxaline–carbohydrate hybrids. Bioorg Med Chem Lett 2004; 14:2777-9. [PMID: 15125931 DOI: 10.1016/j.bmcl.2004.03.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2004] [Revised: 03/23/2004] [Accepted: 03/23/2004] [Indexed: 11/30/2022]
Abstract
The novel DNA interactive quinoxaline-carbohydrate hybrids possessing disaccharides as the carbohydrate moieties were designed and synthesized, and their DNA photocleaving abilities were evaluated in order to examine the effect of the disaccharide structures. The configurations of the glycosidic bonds in the disaccharide strongly affected the DNA photocleaving ability, and two beta-glycosidic bond linkages were very effective for the DNA photocleavage. Furthermore, the quinoxaline-disaccharide hybrids exhibited selective cytotoxicity against cancer cells with photoirradiation.
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Affiliation(s)
- Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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Qi J, Li T, Chan ASC. Fungicide chinomethionate as a new family of photoinducible DNA-cleaving agents. Bioorg Med Chem Lett 2003; 13:3561-3. [PMID: 14505671 DOI: 10.1016/s0960-894x(03)00745-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It is demonstrated for the first time in this report that chinomethionate is capable of causing efficient DNA cleavage under mild irradiation conditions, a fungicide molecule that processes the simple group of 1,3-dithio-2-one as its reactive functionality.
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Affiliation(s)
- Jianying Qi
- Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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18
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Toshima K, Kimura T, Takano R, Ozawa T, Ariga A, Shima Y, Umezawa K, Matsumura S. Molecular design, chemical synthesis and biological evaluation of quinoxaline–carbohydrate hybrids as novel and selective photo-induced DNA cleaving and cytotoxic agents. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00820-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Pratt MR, Bertozzi CR. Chemoselective ligation applied to the synthesis of a biantennary N-linked glycoform of CD52. J Am Chem Soc 2003; 125:6149-59. [PMID: 12785846 DOI: 10.1021/ja029346v] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report here a strategy for the synthesis of N-linked glycopeptide analogues that replace the glycosidic linkages extending from the core pentasaccharide with thioethers amenable to construction by chemoselective ligation. The key building block, a pentasaccharide-Asn analogue containing two thiol residues, was incorporated into CD52 by 9-fluorenylmethoxycarbonyl (Fmoc)-based solid-phase peptide synthesis. An undecasaccharide mimetic was then readily generated by alkylation of this glycopeptide with an N-bromoacetamido trisaccharide. The rapid assembly of a complex type N-linked glycopeptide mimetic was accomplished using this technique.
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Affiliation(s)
- Matthew R Pratt
- Department of Chemistry, University of California, Berkeley 94720, USA
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20
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Crouch R, Polizzi JM, Cleiman RA, Yi J, Romany CA. Deprotection of silyl ethers using ZnBr2 and H2O in CH2Cl2. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01680-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Fernández MJ, Grant KB, Herraiz F, Yang X, Lorente A. DNA photocleavage by dicationic bisintercalants. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01087-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Live DH, Wang ZG, Iserloh U, Danishefsky SJ. A strategy for probing the autonomy of cross-domain stereochemical communication in glycoconjugates. Org Lett 2001; 3:851-4. [PMID: 11263898 DOI: 10.1021/ol0070233] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Glycoproteins contain carbohydrate and peptide sectors. As a model for studying whether there exists stereochemical "communication" between the two domains, we prepared two glycopeptides differing only in the absolute stereochemistry of the peptide domain (L-peptide vs D-peptide). High-field NMR spectroscopy revealed that there are distinct and measurable differences, indicating that the two domains are at some level interactive.
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Affiliation(s)
- D H Live
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
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