1
|
Thiruvengetam P, Chand DK. Controlled and Predictably Selective Oxidation of Activated and Unactivated C(sp3)–H Bonds Catalyzed by a Molybdenum-Based Metallomicellar Catalyst in Water. J Org Chem 2022; 87:4061-4077. [DOI: 10.1021/acs.joc.1c02855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | - Dillip Kumar Chand
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
2
|
Biocatalytic allylic hydroxylation of unsaturated triterpenes and steroids by Bacillus megaterium CGMCC 1.1741. Bioorg Chem 2020; 99:103826. [DOI: 10.1016/j.bioorg.2020.103826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/16/2020] [Accepted: 04/05/2020] [Indexed: 11/18/2022]
|
3
|
|
4
|
Black CC, Gorden AE. Propargylic C H activation using a Cu(II) 2-quinoxalinol salen catalyst and tert -butyl hydroperoxide. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
5
|
Taboonpong P, Chavasiri W. CuCl2/[hmim]Br: A new recyclable catalytic system for aromatization of cyclic dienes. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
6
|
Wang Y, Kuang Y, Zhang H, Ma R, Wang Y. Recyclable Dirhodium(II) Catalyst Rh2(esp)2 for the Allylic Oxidation of Δ5-Steroids. J Org Chem 2017; 82:4729-4736. [DOI: 10.1021/acs.joc.7b00414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Wang
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yi Kuang
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Hongyang Zhang
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ruocheng Ma
- Jiaxiang Foreign Languages School Attached To Chengdu No. 7 Middle School, Chengdu 610023, P.R.China
| | - Yuanhua Wang
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| |
Collapse
|
7
|
Huang J, Li Y, Orza A, Lu Q, Guo P, Wang L, Yang L, Mao H. Magnetic Nanoparticle Facilitated Drug Delivery for Cancer Therapy with Targeted and Image-Guided Approaches. ADVANCED FUNCTIONAL MATERIALS 2016; 26:3818-3836. [PMID: 27790080 PMCID: PMC5077153 DOI: 10.1002/adfm.201504185] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
With rapid advances in nanomedicine, magnetic nanoparticles (MNPs) have emerged as a promising theranostic tool in biomedical applications, including diagnostic imaging, drug delivery and novel therapeutics. Significant preclinical and clinical research has explored their functionalization, targeted delivery, controllable drug release and image-guided capabilities. To further develop MNPs for theranostic applications and clinical translation in the future, we attempt to provide an overview of the recent advances in the development and application of MNPs for drug delivery, specifically focusing on the topics concerning the importance of biomarker targeting for personalized therapy and the unique magnetic and contrast-enhancing properties of theranostic MNPs that enable image-guided delivery. The common strategies and considerations to produce theranostic MNPs and incorporate payload drugs into MNP carriers are described. The notable examples are presented to demonstrate the advantages of MNPs in specific targeting and delivering under image guidance. Furthermore, current understanding of delivery mechanisms and challenges to achieve efficient therapeutic efficacy or diagnostic capability using MNP-based nanomedicine are discussed.
Collapse
Affiliation(s)
- Jing Huang
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Yuancheng Li
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Anamaria Orza
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Qiong Lu
- Department of Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Peng Guo
- Department of Biomedical Engineering, The City College of New York, New York, NY 10031, USA. Vascular Biology Program, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Liya Wang
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| |
Collapse
|
8
|
Grainger WS, Parish EJ. Allylic oxidation of steroidal olefins by vanadyl acetylacetonate and tert-butyl hydroperoxide. Steroids 2015; 101:103-9. [PMID: 26091580 DOI: 10.1016/j.steroids.2015.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/14/2015] [Accepted: 06/09/2015] [Indexed: 11/21/2022]
Abstract
Readily available vanadyl acetylacetonate was found to oxidize the allylic sites of Δ(5) steroidal alcohols without protection of hydroxyl groups. Cholesterol, dehydroepiandrosterone, cholesterol benzoate, cholesterol acetate, pregnenolone, and 5-pregnen-3,20-diene were oxidized to 7-keto products using vanadyl acetylacetonate in one pot reactions at room temperature in the presence of oxygen and water.
Collapse
Affiliation(s)
- Wendell S Grainger
- Department of Chemistry and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, AL 36849-5319, United States
| | - Edward J Parish
- Department of Chemistry and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, AL 36849-5319, United States.
| |
Collapse
|
9
|
Serra S. MnO2/TBHP: A Versatile and User-Friendly Combination of Reagents for the Oxidation of Allylic and Benzylic Methylene Functional Groups. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500829] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
10
|
Badreddine A, Karym EM, Zarrouk A, Nury T, El Kharrassi Y, Nasser B, Cherkaoui Malki M, Lizard G, Samadi M. An expeditious synthesis of spinasterol and schottenol, two phytosterols present in argan oil and in cactus pear seed oil, and evaluation of their biological activities on cells of the central nervous system. Steroids 2015; 99:119-24. [PMID: 25595450 DOI: 10.1016/j.steroids.2015.01.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 12/15/2014] [Accepted: 01/06/2015] [Indexed: 11/21/2022]
Abstract
Spinasterol and schottenol, two phytosterols present in argan oil and in cactus pear seed oil, were synthesized from commercially available stigmasterol by a four steps reactions. In addition, the effects of these phytosterols on cell growth and mitochondrial activity were evaluated on 158N murine oligodendrocytes, C6 rat glioma cells, and SK-N-BE human neuronal cells with the crystal violet test and the MTT test, respectively. The effects of spinasterol and schottenol were compared with 7-ketocholesterol (7KC) and ferulic acid, which is also present in argan and cactus pear seed oil. Whatever the cells considered, dose dependent cytotoxic effects of 7KC were observed whereas no or slight effects of ferulic acid were found. With spinasterol and schottenol, no or slight effects on cell growth were detected. With spinasterol, reduced mitochondrial activities (30-50%) were found on 158N and C6 cells; no effect was found on SK-N-BE. With schottenol, reduced mitochondrial activity were revealed on 158N (50%) and C6 (10-20%) cells; no effect was found on SK-N-BE. Altogether, these data suggest that spinasterol and schottenol can modulate mitochondrial activity and might therefore influence cell metabolism.
Collapse
Affiliation(s)
- Asmaa Badreddine
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France; Laboratory of 'Biochemistry of Neuroscience', University Hassan I, Settat, Morocco
| | - El Mostafa Karym
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France; Laboratory of 'Biochemistry of Neuroscience', University Hassan I, Settat, Morocco
| | - Amira Zarrouk
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France; University of Monastir, LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', Monastir, Tunisia
| | - Thomas Nury
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France
| | - Youssef El Kharrassi
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France; Laboratory of 'Biochemistry of Neuroscience', University Hassan I, Settat, Morocco
| | - Boubker Nasser
- Laboratory of 'Biochemistry of Neuroscience', University Hassan I, Settat, Morocco
| | - Mustapha Cherkaoui Malki
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France
| | - Gérard Lizard
- Université de Bourgogne, Equipe 'Biochimie du peroxysome, inflammation et métabolisme lipidique' EA 7270/INSERM, Dijon, France.
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Département de Chimie, Université de Lorraine, 1 Bd Arago, Metz Technopôle, Metz, France.
| |
Collapse
|
11
|
Zhao Q, Qian C, Chen XZ. N-Hydroxyphthalimide catalyzed allylic oxidation of steroids with t-butyl hydroperoxide. Steroids 2015; 94:1-6. [PMID: 25527284 DOI: 10.1016/j.steroids.2014.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/04/2014] [Accepted: 12/02/2014] [Indexed: 10/24/2022]
Abstract
A new and optimized procedure for the allylic oxidation of Δ(5)-steroids with t-butyl hydroperoxide in the presence of catalytic amounts of N-hydroxyphthalimide (NHPI) under mild conditions was developed, showing excellent regioselectivity and chemoselectivity (functional group compatibility). It was found that Co(OAc)2 could enhance the catalytic ability of NHPI resulting in better yields and shorter reaction times. The reaction mechanism and the scope of the reaction with a variety of Δ(5)-steroidal substrates were also investigated.
Collapse
Affiliation(s)
- Qian Zhao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, China; Department of Chemical and Biological Engineering, Zhejiang University, China
| | - Chao Qian
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, China; Department of Chemical and Biological Engineering, Zhejiang University, China
| | - Xin-Zhi Chen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, China; Department of Chemical and Biological Engineering, Zhejiang University, China.
| |
Collapse
|
12
|
Li Y, Lee T, Weerasiri K, Wang T, Buss EE, McKee ML, Gorden AEV. 2-Quinoxalinol diamine Cu(ii) complex: facilitating catalytic oxidation through dual mechanisms. Dalton Trans 2014; 43:13578-83. [DOI: 10.1039/c4dt01562b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
13
|
Abstract
This review article presents advances in cholesterol chemistry since 2000. Various transformations (chemical, enzymatic, electrochemical, etc.) of cholesterol are presented. A special emphasis is given to cholesterol oxidation reactions, but also substitution of the 3β-hydroxyl group, addition to the C5-C6 double bond, C-H functionalization, and C-C bond forming reactions are discussed.
Collapse
Affiliation(s)
- Jacek W Morzycki
- Institute of Chemistry, University of Białystok, Hurtowa 1, 15-399 Białystok, Poland.
| |
Collapse
|
14
|
Kajitani K, Koshiyama T, Hori A, Ohtani R, Mishima A, Torikai K, Ebine M, Oishi T, Takata M, Kitagawa S, Ohba M. Guest responsivity of a two-dimensional coordination polymer incorporating a cholesterol-based co-ligand. Dalton Trans 2013; 42:15893-7. [DOI: 10.1039/c3dt51465j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Li Y, Lee TB, Wang T, Gamble AV, Gorden AEV. Allylic C-H activations using Cu(II) 2-quinoxalinol salen and tert-butyl hydroperoxide. J Org Chem 2012; 77:4628-33. [PMID: 22563758 DOI: 10.1021/jo300372q] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Using a Cu(II) 2-quinoxalinol salen complex as the catalyst and tert-butyl hydroperoxide (TBHP) as the oxidant, allylic activations of olefin substrates can be converted to the corresponding enones or 1,4-enediones. Excellent yields can be achieved (up to 99%) within a very short reaction time and with great tolerance for additional functional groups. Possible mechanistic pathways have been characterized using Raman spectroscopy, cyclic voltammetry, and theoretical calculations.
Collapse
Affiliation(s)
- Yuancheng Li
- Department of Chemistry and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, Alabama 36849-5319, United States
| | | | | | | | | |
Collapse
|
16
|
Zhong YL, Gauthier DR, Shi YJ, McLaughlin M, Chung JYL, Dagneau P, Marcune B, Krska SW, Ball RG, Reamer RA, Yasuda N. Synthesis of antifungal glucan synthase inhibitors from enfumafungin. J Org Chem 2012; 77:3297-310. [PMID: 22423625 DOI: 10.1021/jo300046v] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient, new, and scalable semisynthesis of glucan synthase inhibitors 1 and 2 from the fermentation product enfumafungin 3 is described. The highlights of the synthesis include a high-yielding ether bond-forming reaction between a bulky sulfamidate 17 and alcohol 4 and a remarkably chemoselective, improved palladium(II)-mediated Corey-Yu allylic oxidation at the highly congested C-12 position of the enfumafungin core. Multi-hundred gram quantities of the target drug candidates 1 and 2 were prepared, in 12 linear steps with 25% isolated yield and 13 linear steps with 22% isolated yield, respectively.
Collapse
Affiliation(s)
- Yong-Li Zhong
- Department of Process Research, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065-0900, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Shingate BB, Hazra BG, Salunke DB, Pore VS. RuCl3-TBHP mediated allylic oxidation of Δ8(9) lanosterol derivatives. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.166] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Ra CS, Yoon DH, Park GS. Rotation of the Allylselenic Intermediate in Moderating the Stereochemical Course of the Selenium Dioxide-Mediated Allylic Oxidation. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.3137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
19
|
Shaikh TM, Hong FE. Iron-Catalyzed Oxidative Cleavage of Olefins and Alkynes to Carboxylic Acids with Aqueous tert-Butyl Hydroperoxide. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000899] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|