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Maeda B, Murakami K. Recent advancement in the synthesis of isothiocyanates. Chem Commun (Camb) 2024; 60:2839-2864. [PMID: 38380440 DOI: 10.1039/d3cc06118c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Isothiocyanates exhibit various biological characteristics, including antimicrobial, anti-inflammatory, and anticancer properties. Their significance extends to synthetic chemistry, where they serve as valuable platforms for versatile transformations. Consequently, they have attracted the attention of biologists and chemists. This review summarizes recent advancements in the synthesis of isothiocyanates. Access to a variety of starting materials is important to prepare isothiocyanates with diverse structures. This review categorizes synthetic methods into three types based on the starting materials and functional groups: (i) type A, derived from primary amines; (ii) type B, derived from other nitrogen functional groups; and (iii) type C, derived from non-nitrogen groups. Recent trends in synthetic methods have revealed the prevalence of type-A reactions derived from primary amines. However, type B reactions have rarely been reported. Notably, over the past four years, there has been a notable increase in type C reactions, indicating a growing interest in non-nitrogen-derived isothiocyanates. Overall, this review not only outlines the advancements in the synthesis of isothiocyanates but also highlights trends in the methodology.
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Affiliation(s)
- Bumpei Maeda
- Department of Chemistry, School of Science, Kwansei Gakuin University, Sanda, Hyogo 669-1330, Japan.
| | - Kei Murakami
- Department of Chemistry, School of Science, Kwansei Gakuin University, Sanda, Hyogo 669-1330, Japan.
- Japanese Science and Technology Agency (JST)-PRESTO, Chiyoda, Tokyo 102-0076, Japan
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2
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Late‐Stage Dehydroxyazidation of Alcohols Promoted by Trifunctional Hypervalent Azido‐Iodine(III) Reagents. Chemistry 2022; 28:e202200272. [DOI: 10.1002/chem.202200272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 11/10/2022]
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3
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Shekharappa, Roopesh Kumar L, Srinivasulu C, Sureshbabu VV. Dehydration of Chiral α-Amides to Chiral α-Nitriles Under the Appel Reaction Conditions. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10101-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Steppeler F, Iwan D, Wojaczyńska E, Wojaczyński J. Chiral Thioureas-Preparation and Significance in Asymmetric Synthesis and Medicinal Chemistry. Molecules 2020; 25:E401. [PMID: 31963671 PMCID: PMC7024223 DOI: 10.3390/molecules25020401] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 01/23/2023] Open
Abstract
For almost 20 years, thioureas have been experiencing a renaissance of interest with the emerged development of asymmetric organocatalysts. Due to their relatively high acidity and strong hydrogen bond donor capability, they differ significantly from ureas and offer, appropriately modified, great potential as organocatalysts, chelators, drug candidates, etc. The review focuses on the family of chiral thioureas, presenting an overview of the current state of knowledge on their synthesis and selected applications in stereoselective synthesis and drug development.
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Affiliation(s)
- Franz Steppeler
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Dominika Iwan
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Elżbieta Wojaczyńska
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Jacek Wojaczyński
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50 383 Wrocław, Poland;
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Sagar NR, Durgamma S, Srinivasulu C, Basavaprabhu H, Sureshbabu V. A Unified Approach to Access
N
‐Acyl Sulfonamide Tethered Peptide Conjugates. ChemistrySelect 2019. [DOI: 10.1002/slct.201901024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nagamangala Ramachandra Sagar
- Room No. 109Peptide Research LaboratoryDepartment of ChemistryCentral College CampusDr. B. R. Ambedkar VeedhiBangalore University Bangalore 560 001 India
| | - Suram Durgamma
- Room No. 109Peptide Research LaboratoryDepartment of ChemistryCentral College CampusDr. B. R. Ambedkar VeedhiBangalore University Bangalore 560 001 India
| | - Chinthaginjala Srinivasulu
- Room No. 109Peptide Research LaboratoryDepartment of ChemistryCentral College CampusDr. B. R. Ambedkar VeedhiBangalore University Bangalore 560 001 India
| | - Hosamani Basavaprabhu
- Room No. 109Peptide Research LaboratoryDepartment of ChemistryCentral College CampusDr. B. R. Ambedkar VeedhiBangalore University Bangalore 560 001 India
| | - Vommina Venkata Sureshbabu
- Room No. 109Peptide Research LaboratoryDepartment of ChemistryCentral College CampusDr. B. R. Ambedkar VeedhiBangalore University Bangalore 560 001 India
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6
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Janczewski Ł, Gajda A, Gajda T. Direct, Microwave-Assisted Synthesis of Isothiocyanates. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900105] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Łukasz Janczewski
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology, 116 Żeromski Str.; 90-924 Lodz Poland
| | - Anna Gajda
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology, 116 Żeromski Str.; 90-924 Lodz Poland
| | - Tadeusz Gajda
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology, 116 Żeromski Str.; 90-924 Lodz Poland
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7
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Roopesh Kumar L, Panduranga V, Vishwanatha TM, Shekharappa, Sureshbabu VV. Synthesis of thioureido peptidomimetics employing alkyl azides and dithiocarbamates. Org Biomol Chem 2019. [PMID: 29528353 DOI: 10.1039/c8ob00239h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An unprecedented approach for the assembly of thioureido peptidomimetics is developed employing alkyl azides and dithiocarbamates. Dithiocarbamates react with alkyl azides with the liberation of N2 and elemental sulfur thereby leading to thiourea in a traceless manner. Thioureido peptidomimetics are thus furnished in good yields with no epimerization. This process is mild, free from the use of a base, scalable and step economic. The practicability of this methodology has been highlighted by the synthesis of N,N'-orthogonally protected thioureido peptidomimetics.
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Affiliation(s)
- L Roopesh Kumar
- Room No. 109, Peptide Research Laboratory, Department of Studies in Chemistry, Central College Campus, Dr. B. R. Ambedkar Veedhi, Bangalore University, Bangalore, 560001, India.
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8
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Santhosh L, Durgamma S, Shekharappa, Sureshbabu VV. Staudinger/aza-Wittig reaction to access N β-protected amino alkyl isothiocyanates. Org Biomol Chem 2018; 16:4874-4880. [PMID: 29931019 DOI: 10.1039/c8ob01061g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unified approach to access Nβ-protected amino alkyl isothiocyanates using Nβ-protected amino alkyl azides through a general strategy of Staudinger/aza-Wittig reaction is described. The type of protocol used to access isothiocyanates depends on the availability of precursors and also, especially in the amino acid chemistry, on the behavior of other labile groups towards the reagents used in the protocols; fortunately, we were not concerned about both these factors as precursor-azides were prepared easily by standard protocols, and the present protocol can pave the way for accessing title compounds without affecting Boc, Cbz and Fmoc protecting groups, and benzyl and tertiary butyl groups in the side chains. The present strategy eliminates the need for the use of amines to obtain title compounds and thus, this method is step-economical; additional advantages include retention of chirality, convenient handling and easy purification. A few hitherto unreported compounds were also prepared, and all final compounds were completely characterized by IR, mass, optical rotation, and 1H and 13C NMR studies.
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Affiliation(s)
- L Santhosh
- # 109, Peptide Research Laboratory, Department of Studies in Chemistry, Central College Campus, Dr. B. R. Ambedkar Veedhi, Bangalore University, Bangalore, 560001, India.
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Santhosh L, Nagamangala SR, Thimmalapura VM, Vommina SV. Synthesis of 1, 5- Disubstituted TetrazoleviaUgi Azide Reaction: An Asymmetric Induction Approach. ChemistrySelect 2017. [DOI: 10.1002/slct.201701032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L. Santhosh
- Department of Studies in Chemistry, Central College Campus; Bangalore University; Dr. B. R. AmbedkarVeedhi Bangalore 560001 India
| | - Sagar R. Nagamangala
- Department of Studies in Chemistry, Central College Campus; Bangalore University; Dr. B. R. AmbedkarVeedhi Bangalore 560001 India
| | - Vishwanatha M. Thimmalapura
- Department of Studies in Chemistry, Central College Campus; Bangalore University; Dr. B. R. AmbedkarVeedhi Bangalore 560001 India
| | - Sureshbabu V. Vommina
- Department of Studies in Chemistry, Central College Campus; Bangalore University; Dr. B. R. AmbedkarVeedhi Bangalore 560001 India
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10
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Zhao N, Williams TM, Zhou Z, Fronczek FR, Sibrian-Vazquez M, Jois SD, Vicente MGH. Synthesis of BODIPY-Peptide Conjugates for Fluorescence Labeling of EGFR Overexpressing Cells. Bioconjug Chem 2017; 28:1566-1579. [PMID: 28414435 DOI: 10.1021/acs.bioconjchem.7b00211] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Regioselective functionalization of 2,3,5,6,8-pentachloro-BODIPY 1 produced unsymmetric BODIPY 5, bearing an isothiocyanate group suitable for conjugation, in only four steps. The X-ray structure of 5 reveals a nearly planar BODIPY core with aryl dihedral angles in the range 47.4-62.9°. Conjugation of 5 to two EGFR-targeting pegylated peptides, 3PEG-LARLLT (6) and 3PEG-GYHWYGYTPQNVI (7), under mild conditions (30 min at room temperature), afforded BODIPY conjugates 8 and 9 in 50-80% isolated yields. These conjugates showed red-shifted absorption and emission spectra compared with 5, in the near-IR region, and were evaluated as potential fluorescence imaging agents for EGFR overexpressing cells. SPR and docking investigations suggested that conjugate 8 bearing the LARLLT sequence binds to EGFR more effectively than 9 bearing the GYHWYGYTPQNVI peptide, in part due to the lower solubility of 9, and its tendency for aggregation at concentrations above 10 μM. Studies in human carcinoma HEp2 cells overexpressing EGFR demonstrated low dark and photo cytotoxicities for BODIPY 5 and the two peptide conjugates, and remarkably high cellular uptake for both conjugates 8 and 9, up to 90-fold compared with BODIPY 5 after 1 h. Fluorescence imaging studies in HEp2 cells revealed subcellular localization of the BODIPY-peptide conjugates mainly in the Golgi apparatus and the cell lysosomes. The low cytotoxicity of the new conjugates and their remarkably high uptake into EGFR overexpressing cells renders them promising imaging agents for cancers overexpressing EGFR.
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Affiliation(s)
- Ning Zhao
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Tyrslai M Williams
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Zehua Zhou
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Martha Sibrian-Vazquez
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
| | - Seetharama D Jois
- Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe , Monroe, Louisiana 71201, United States
| | - M Graça H Vicente
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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11
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Joy S, Sureshbabu VV, Periyasamy G. Density functional theoretical studies on photoswitching and charge migration dynamics of thio and selenoureidopeptides. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3693] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sherin Joy
- Department of Chemistry; Bangalore University; Bangalore Karnataka India
| | | | - Ganga Periyasamy
- Department of Chemistry; Bangalore University; Bangalore Karnataka India
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12
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Versatile synthesis of 2′-amino-2′-deoxyuridine derivatives with a 2′-amino group carrying linkers possessing a reactive terminal functionality. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Antunes S, Douat C, Guichard G. Solid-Phase Synthesis of Hybrid Urea Oligomers Containing Conservative Thiourea Mutations. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Panduranga V, Prabhu G, Kumar R, Basavaprabhu B, Sureshbabu VV. A facile one pot route for the synthesis of imide tethered peptidomimetics. Org Biomol Chem 2016; 14:556-563. [DOI: 10.1039/c5ob01708d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A simple and efficient method for the synthesis of N,N’-orthogonally protected imide tethered peptidomimetics is presented. The imide peptidomimetics were synthesized by coupling the in situ generated selenocarboxylate of Nα-protected amino acids with Nα-protected amino acid azides in good yields.
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Affiliation(s)
- Veladi Panduranga
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
| | - Girish Prabhu
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
| | - Roopesh Kumar
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
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15
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16
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Basavaprabhu H, Prabhu G, Krishnamurthy M, Rao PN, Sureshbabu VV. “Thioureidopeptide”: Novel Synthon for the Synthesis of N, N′, N″-Trisubstituted Guanidinopeptide Mimics. Int J Pept Res Ther 2015. [DOI: 10.1007/s10989-015-9496-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Nelli YR, Antunes S, Salaün A, Thinon E, Massip S, Kauffmann B, Douat C, Guichard G. Isosteric Substitutions of Urea to Thiourea and Selenourea in Aliphatic Oligourea Foldamers: Site-Specific Perturbation of the Helix Geometry. Chemistry 2014; 21:2870-80. [DOI: 10.1002/chem.201405792] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Indexed: 01/05/2023]
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18
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Krishnamurthy M, Basavaprabhu, Sureshbabu VV. One-Pot Synthesis of New Class of Dithiocarbonate-Tethered Peptidomimetics. Int J Pept Res Ther 2014. [DOI: 10.1007/s10989-014-9448-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Pal R, Nagendra G, Samarasimhareddy M, Sureshbabu VV, Guru Row TN. Observation of a reversible isomorphous phase transition and an interplay of "σ-holes" and "π-holes" in Fmoc-Leu-ψ[CH2-NCS]. Chem Commun (Camb) 2014; 51:933-6. [PMID: 25434690 DOI: 10.1039/c4cc08751h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fmoc-Leu-ψ[CH2NCS] undergoes a reversible isomorphous phase transition upon cooling. The crystal structure at 100 K displays a short N=C=S···N=C=S intermolecular interaction, which has been characterized based on experimental charge density analysis, as a stabilizing interaction with both σ-holes and π-holes acting cooperatively.
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Affiliation(s)
- Rumpa Pal
- Solid state and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India.
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20
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Hosamani B, Narendra N, Prabhu G, Sureshbabu VV. Synthesis of N-urethane protected amino alkyl (S-methyl)-isothiouronium compounds and carbodiimide tethered peptidomimetics: an application for guanidino and substituted guanidino peptidomimetics synthesis. RSC Adv 2014. [DOI: 10.1039/c4ra07252a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Ziyaei Halimehjani A, Ranjbari MA, Pasha Zanussi H. Synthesis of a new series of dithiocarbamate-linked peptidomimetics and their application in Ugi reactions. RSC Adv 2013. [DOI: 10.1039/c3ra44552f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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22
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Madhu C, Hemantha HP, Vishwanatha TM, Sureshbabu VV. Simple Preparation of N-Protected Chiral β-Amino Alkyl Thiols from Corresponding Iodides Employing Sodium Trithiocarbonate. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2011.595522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Vishwanatha TM, Narendra N, Chattopadhyay B, Mukherjee M, Sureshbabu VV. Synthesis of Selenoxo Peptides and Oligoselenoxo Peptides Employing LiAlHSeH. J Org Chem 2012; 77:2689-702. [DOI: 10.1021/jo2024703] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- T. M. Vishwanatha
- Peptide Research Laboratory,
Department of Studies in Chemistry, Central College Campus, Bangalore University, Dr. B. R. Ambedkar Veedhi, Bangalore
560001, India
| | - N. Narendra
- Peptide Research Laboratory,
Department of Studies in Chemistry, Central College Campus, Bangalore University, Dr. B. R. Ambedkar Veedhi, Bangalore
560001, India
| | - Basab Chattopadhyay
- Department
of Solid State Physics, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata 700032, India
| | - Monika Mukherjee
- Department
of Solid State Physics, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata 700032, India
| | - Vommina V. Sureshbabu
- Peptide Research Laboratory,
Department of Studies in Chemistry, Central College Campus, Bangalore University, Dr. B. R. Ambedkar Veedhi, Bangalore
560001, India
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Sureshbabu VV, Vasantha B, Nagendra G. A facile one-pot synthesis of Nα-Z/Boc-protected S-linked 1,3,4-oxadiazole tethered peptidomimetics. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Basavaprabhu H, Sureshbabu VV. Iron(iii) catalysed synthesis of unsymmetrical di and trisubstituted ureas – a variation of classical Ritter reaction. Org Biomol Chem 2012; 10:2528-33. [DOI: 10.1039/c2ob06916d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Hsu SF, Ko CW, Wu YT. Cobalt-Catalyzed Carbon-Carbon Bond Formation: Synthesis and Applications of Enantiopure Pyrrolidine Derivatives[1]. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100220] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Hemantha HP, Sureshbabu VV. Isoselenocyanates derived from amino acid esters: an expedient synthesis and application to the assembly of selenoureidopeptidomimetics, unsymmetrical Selenoureas and selenohydantoins. J Pept Sci 2010; 16:644-51. [DOI: 10.1002/psc.1276] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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28
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Lamani RS, Nagendra G, Sureshbabu VV. A facile synthesis of N-Z/Boc-protected 1,3,4-oxadiazole-based peptidomimetics employing peptidyl thiosemicarbazides. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Synthesis of Hybrid Peptidomimetics and Neoglycoconjugates Employing Click Protocol: Dual Utility of Poc-Group for Inserting Carbamate-Triazole Units into Peptide Backbone. Int J Pept Res Ther 2010. [DOI: 10.1007/s10989-010-9228-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Chennakrishnareddy G, Nagendra G, Hemantha HP, Das U, Guru Row TN, Sureshbabu VV. Isoselenocyanates derived from Boc/Z-amino acids: synthesis, isolation, characterization, and application to the efficient synthesis of unsymmetrical selenoureas and selenoureidopeptidomimetics. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.06.082] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Hemantha HP, Sureshbabu VV. A simple approach for the synthesis of new classes of dithiocarbamate-linked peptidomimetics. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.172] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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