1
|
Masuda T, Ohyama K, Yoshimura A, Fuwa H. Total Synthesis of (-)-Enigmazole A by the Macrocyclization/Transannular Pyran Cyclization Strategy. Org Lett 2024; 26:2045-2050. [PMID: 38421804 DOI: 10.1021/acs.orglett.4c00290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
An 18-step synthesis of (-)-enigmazole A is herein disclosed. The present synthesis is based on a modular assembly of three building blocks of similar complexity, a macrocyclic ring-closing metathesis to forge the 18-membered macrocyclic skeleton, and a desilylative transannular oxa-Michael addition for stereoselective construction of the 2,6-cis-substituted tetrahydropyran ring.
Collapse
Affiliation(s)
- Taisei Masuda
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551, Japan
| | - Kyoya Ohyama
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551, Japan
| | - Atsushi Yoshimura
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551, Japan
| |
Collapse
|
2
|
Lin B, Liu T, Luo T. Gold-catalyzed cyclization and cycloaddition in natural product synthesis. Nat Prod Rep 2024. [PMID: 38456472 DOI: 10.1039/d3np00056g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Covering: 2016 to mid 2023Transition metal catalysis, known for its remarkable capacity to expedite the assembly of molecular complexity from readily available starting materials in a single operation, occupies a central position in contemporary chemical synthesis. Within this landscape, gold-catalyzed reactions present a novel and versatile paradigm, offering robust frameworks for accessing diverse structural motifs. In this review, we highlighted a curated selection of publications in the past 8 years, focusing on the deployment of homogeneous gold catalysis in the ring-forming step for the total synthesis of natural products. These investigations are categorized based on the specific ring formations they engender, accentuating the prevailing gold-catalyzed methodologies applied to surmount intricate challenges in natural products synthesis.
Collapse
Affiliation(s)
- Boxu Lin
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education, Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Tianran Liu
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education, Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Tuoping Luo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education, Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518055, China
| |
Collapse
|
3
|
Goda Y, Fuwa H. Total Synthesis of (-)-Enigmazole B. Org Lett 2023; 25:8402-8407. [PMID: 37796572 DOI: 10.1021/acs.orglett.3c03002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Total synthesis of (-)-enigmazole B was achieved for the first time. Highlights of the present synthesis include an olefin cross-metathesis and hemiacetalization/intramolecular oxa-Michael addition sequence for accessing an (E)-configured enol tosylate, a Sonogashira cross-coupling to assemble all the carbon atoms of the target natural product, a remarkably chemo- and regioselective Au-catalyzed intramolecular alkyne hydroalkoxylation for the construction of the dihydropyran ring, and a Yamaguchi macrolactonization to close the 18-membered macrolactone skeleton.
Collapse
Affiliation(s)
- Yoshihiro Goda
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| |
Collapse
|
4
|
Della-Felice F, de Andrade Bartolomeu A, Pilli RA. The phosphate ester group in secondary metabolites. Nat Prod Rep 2022; 39:1066-1107. [PMID: 35420073 DOI: 10.1039/d1np00078k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Covering: 2000 to mid-2021The phosphate ester is a versatile, widespread functional group involved in a plethora of biological activities. Its presence in secondary metabolites, however, is relatively rare compared to other functionalities and thus is part of a rather unexplored chemical space. Herein, the chemistry of secondary metabolites containing the phosphate ester group is discussed. The text emphasizes their structural diversity, biological and pharmacological profiles, and synthetic approaches employed in the phosphorylation step during total synthesis campaigns, covering the literature from 2000 to mid-2021.
Collapse
Affiliation(s)
- Franco Della-Felice
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, CEP 13083-970 Campinas, Sao Paulo, Brazil.,Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.
| | | | - Ronaldo Aloise Pilli
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, CEP 13083-970 Campinas, Sao Paulo, Brazil
| |
Collapse
|
5
|
Zhang H, Zou J, Yan X, Chen J, Cao X, Wu J, Liu Y, Wang T. Marine-Derived Macrolides 1990-2020: An Overview of Chemical and Biological Diversity. Mar Drugs 2021; 19:180. [PMID: 33806230 PMCID: PMC8066444 DOI: 10.3390/md19040180] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 12/18/2022] Open
Abstract
Macrolides are a significant family of natural products with diverse structures and bioactivities. Considerable effort has been made in recent decades to isolate additional macrolides and characterize their chemical and bioactive properties. The majority of macrolides are obtained from marine organisms, including sponges, marine microorganisms and zooplankton, cnidarians, mollusks, red algae, bryozoans, and tunicates. Sponges, fungi and dinoflagellates are the main producers of macrolides. Marine macrolides possess a wide range of bioactive properties including cytotoxic, antibacterial, antifungal, antimitotic, antiviral, and other activities. Cytotoxicity is their most significant property, highlighting that marine macrolides still encompass many potential antitumor drug leads. This extensive review details the chemical and biological diversity of 505 macrolides derived from marine organisms which have been reported from 1990 to 2020.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Tingting Wang
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, China; (H.Z.); (J.Z.); (X.Y.); (J.C.); (X.C.); (J.W.); (Y.L.)
| |
Collapse
|
6
|
Highly Diastereoselective Chelation-Controlled 1,3-anti-Allylation of (S)-3-(Methoxymethyl)hexanal Enabled by Hydrate of Scandium Triflate. Symmetry (Basel) 2021. [DOI: 10.3390/sym13030470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
En route to the total synthesis of (+)-Neopeltolide, we explored Lewis acid-assisted diastereoselective allylation of MOM-protected 3-hydroxylhexanal with β-(2,2-diethoxyethyl)-substituted (allyl)tributylstannane. The hydrated form of scandium triflate was found to be essential for attaining high 1,3-anti-diastereoselectivity (d.r. 94:6), while the use of anhydrous catalyst resulted in a modest diastereocontrol (d.r. 76:24). The preferred 1,3-anti-selectivity in this transformation can be rationalized in the framework of the Reetz chelate model of asymmetric induction. The 1,3-anti-configuration of the product was confirmed by its conversion into the known C7-C16 building block of (+)-Neopeltolide. We also report an improved protocol for the synthesis of β-(2,2-diethoxyethyl)-substituted (allyl)tributylstannane, which can be utilized as a cost-efficient bipolar isoprenoid-type C5-building block in the synthesis of natural compounds.
Collapse
|
7
|
Fürstner A. Lessons from Natural Product Total Synthesis: Macrocyclization and Postcyclization Strategies. Acc Chem Res 2021; 54:861-874. [PMID: 33507727 PMCID: PMC7893715 DOI: 10.1021/acs.accounts.0c00759] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Macrocyclic
natural products are plentiful in
the bacteria, archaea,
and eukaryote domains of life. For the significant advantages that
they provide to the producing organisms, evolution has learned how
to implement various types of macrocyclization reactions into the
different biosynthetic pathways and how to effect them with remarkable
ease. Mankind greatly benefits from nature’s pool, not least
because naturally occurring macrocycles or derivatives thereof serve
as important drugs for the treatment of many serious ailments. In stark contrast, macrocyclization reactions are usually perceived
as difficult to accomplish by purely chemical means. While it is true
that ring closure necessarily entails an entropic loss and may result
in the buildup of (considerable) ring strain that must be compensated
for in one way or the other, it is also fair to note tremendous methodological
advances during the last decades that greatly alleviated this traditional
“macrocycle challenge”. It is therefore increasingly
possible to explore the advantages provided by large as well as medium-size
ring systems in a more systematic manner. This venture also holds
the promise of increasing the “chemical space” amenable
to drug development to a considerable extent. In consideration
of this and other important long-term perspectives,
it is appropriate to revisit the current state of the art. To this
end, a number of vignettes are presented, each of which summarizes
a total synthesis project targeting macrocyclic natural products of
greatly different chemotypes using a variety of transformations to
reach these goals. Although we were occasionally facing “dead
ends”, which are also delineated for the sake of a complete
picture, these case studies illustrate the notion that the formation
of a certain macrocyclic perimeter is (usually) no longer seriously
limiting. In addition to substantial progress in the “classical”
repertoire (macrolactonization and macrolactamization
(pateamine A, spirastrellolide, and belizentrin)), various metal-catalyzed
reactions have arguably led to the greatest leaps forward. Among them,
palladium-catalyzed C–C bond formation (roseophilin and nominal
xestocyclamine A) and, in particular, alkene and alkyne metathesis
stand out (iejimalide, spirastrellolide, enigmazole, ingenamine, and
sinulariadiolide). In some cases, different methods were pursued in
parallel, thus allowing for a critical assessment and comparison. To the extent that the macrocyclic challenge is vanishing, the
opportunity arises to focus attention on the postmacrocyclization
phase. One may stipulate that a well-designed cyclization precursor
does not only ensure efficient ring closure but also fosters and streamlines
the steps that come after the event. One way to do so is dual (multiple)
use in that the functional groups serving the actual cyclization reaction
also find productive applications downstream from it rather than being
subject to simple defunctionalization. In this context,
better insight into the conformational peculiarities of large rings
and the growing confidence in their accessibility in a stereochemically
well defined format rejuvenate the implementation of transannular
reactions or reaction cascades that can lead to rapid and substantial
increases in molecular complexity. The examples summarized herein
showcase such possibilities, with special emphasis on tranannular
gold catalysis and the emerging ruthenium-catalyzed trans-hydrometalation chemistry for the selective functionalization of
alkynes.
Collapse
|
8
|
Kim Y, Sengupta S, Sim T. Natural and Synthetic Lactones Possessing Antitumor Activities. Int J Mol Sci 2021; 22:ijms22031052. [PMID: 33494352 PMCID: PMC7865919 DOI: 10.3390/ijms22031052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/29/2022] Open
Abstract
Cancer is one of the leading causes of death globally, accounting for an estimated 8 million deaths each year. As a result, there have been urgent unmet medical needs to discover novel oncology drugs. Natural and synthetic lactones have a broad spectrum of biological uses including anti-tumor, anti-helminthic, anti-microbial, and anti-inflammatory activities. Particularly, several natural and synthetic lactones have emerged as anti-cancer agents over the past decades. In this review, we address natural and synthetic lactones focusing on their anti-tumor activities and synthetic routes. Moreover, we aim to highlight our journey towards chemical modification and biological evaluation of a resorcylic acid lactone, L-783277 (4). We anticipate that utilization of the natural and synthetic lactones as novel scaffolds would benefit the process of oncology drug discovery campaigns based on natural products.
Collapse
Affiliation(s)
- Younghoon Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
- Severance Biomedical Science Institute, Graduate School of Medical Science (Brain Korea 21 Project), College of Medicine, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea;
| | - Sandip Sengupta
- Severance Biomedical Science Institute, Graduate School of Medical Science (Brain Korea 21 Project), College of Medicine, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea;
| | - Taebo Sim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
- Severance Biomedical Science Institute, Graduate School of Medical Science (Brain Korea 21 Project), College of Medicine, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea;
- Correspondence: ; Tel.: +82-2-2228-0797
| |
Collapse
|
9
|
Sakurai K, Sakamoto K, Sasaki M, Fuwa H. Unified Total Synthesis of (-)-Enigmazole A and (-)-15-O-Methylenigmazole A. Chem Asian J 2020; 15:3494-3502. [PMID: 32902874 DOI: 10.1002/asia.202001015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Indexed: 12/29/2022]
Abstract
The total synthesis of cytotoxic marine phosphomacrolides, (-)-enigmazole A and (-)-15-O-methylenigmazole A, is described in detail. The 2,6-cis-substituted tetrahydropyran ring was efficiently elaborated by using a tandem olefin cross-metathesis/intramolecular oxa-Michael addition reaction. The 18-membered macrolactone skeleton was forged via a Au-catalyzed propargylic benzoate rearrangement/macrocyclic ring-closing metathesis sequence. Late-stage diversification of a common intermediate enabled unified total synthesis of (-)-enigmazole A and (-)-15-O-methylenigmazole A.
Collapse
Affiliation(s)
- Keisuke Sakurai
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Keita Sakamoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan.,Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Makoto Sasaki
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan
| |
Collapse
|
10
|
Panda M, Mondal M, Chen S, Ibrahim AA, Twardy DJ, Kerrigan NJ. Mechanistic Investigations of the Pd‐Catalyzed Hydrogenolysis of Ketene Heterodimer β‐Lactones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Manashi Panda
- Department of Chemistry Oakland University 2200 N. Squirrel Rd Rochester 48309 MI USA
| | - Mukulesh Mondal
- Department of Chemistry Oakland University 2200 N. Squirrel Rd Rochester 48309 MI USA
| | - Shi Chen
- Department of Chemistry Oakland University 2200 N. Squirrel Rd Rochester 48309 MI USA
| | - Ahmad A. Ibrahim
- Department of Chemistry Oakland University 2200 N. Squirrel Rd Rochester 48309 MI USA
| | - Dylan J. Twardy
- Department of Chemistry Oakland University 2200 N. Squirrel Rd Rochester 48309 MI USA
| | - Nessan J. Kerrigan
- School of Chemical Sciences Dublin City University Glasnevin 9 Dublin Ireland
| |
Collapse
|
11
|
Heravi MM, Zadsirjan V, Daraie M, Ghanbarian M. Applications of Wittig Reaction in the Total Synthesis of Natural Macrolides. ChemistrySelect 2020. [DOI: 10.1002/slct.202002192] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry, School of ScienceAlzahra University, Vanak, Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of ScienceAlzahra University, Vanak, Tehran Iran
| | - Mansoureh Daraie
- Department of Chemistry, School of ScienceAlzahra University, Vanak, Tehran Iran
| | - Manizheh Ghanbarian
- Department of Chemistry, School of ScienceAlzahra University, Vanak, Tehran Iran
| |
Collapse
|
12
|
Synthesis of Natural (-)-Antrocin and its Enantiomer via Stereoselective Aldol Reaction. Molecules 2020; 25:molecules25040831. [PMID: 32075004 PMCID: PMC7070359 DOI: 10.3390/molecules25040831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/07/2020] [Accepted: 02/13/2020] [Indexed: 12/16/2022] Open
Abstract
The total synthesis of (-)-antrocin and its enantiomer are presented. Antrocin (-)-1 is an important natural product which acts as an antiproliferative agent in a metastatic breast cancer cell line (IC50: 0.6 μM). The key features of this synthesis are: (a) selective anti-addition of trimethylsilyl cyanide (TMSCN) to α,β-unsaturated ketone; (b) resolution of (±)-7 using chiral auxiliary L-dimethyl tartrate through formation of cyclic ketal diastereomers followed by simple column chromatography separation and acid hydrolysis; (c) substrate-controlled stereoselective aldol condensation of (+)-12 with monomeric formaldehyde and pyridinium chlorochromate (PCC) oxidation for synthesis of essential lactone core in (-)-14; and (d) non-basic Lombardo olefination of the carbonyl at the final step to yield (-)-antrocin. In addition, (+)-9 cyclic ketal diastereomer was converted to (+)-antrocin with similar reaction sequences.
Collapse
|
13
|
Zhang N, Huang MZ, Liu AP, Liu MH, Li LZ, Zhou CG, Ren YG, Ou XM, Long CY, Sun J, Dang MM, Lan ZL. Design, synthesis, and insecticidal/acaricidal evaluation of novel pyrimidinamine derivatives containing phenyloxazole moiety. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00932-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
14
|
Abstract
In the presence of a chiral iridium complex, commercially available 3-chloro-2-chloromethyl-1-propene (1) was selectively activated for various reductive couplings. Depending on the reaction conditions it allows a selective mono- or bidirectional condensation with one or two external aldehydes with excellent enantiocontrol (>90% ee). This approach occurring simply under mild conditions and avoiding premetalated reagents constructs rapidly chiral homoallylic alcohols, key precursors of important molecular fragments such as furans, pyrans, ketodiols, or 1,3,5-polyols.
Collapse
Affiliation(s)
- Adrien Quintard
- Aix Marseille Univ , CNRS, Centrale Marseille, iSm2 , Marseille 13397 , France
| | - Jean Rodriguez
- Aix Marseille Univ , CNRS, Centrale Marseille, iSm2 , Marseille 13397 , France
| |
Collapse
|
15
|
|
16
|
Ai Y, Kozytska MV, Zou Y, Khartulyari AS, Maio WA, Smith AB. Total Synthesis of the Marine Phosphomacrolide, (-)-Enigmazole A, Exploiting Multicomponent Type I Anion Relay Chemistry (ARC) in Conjunction with a Late-Stage Petasis-Ferrier Union/Rearrangement. J Org Chem 2018; 83:6110-6126. [PMID: 29786446 DOI: 10.1021/acs.joc.8b00899] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An effective late-stage large-fragment union/rearrangement exploiting the Petasis-Ferrier protocol, in conjunction with multicomponent Type I Anion Relay Chemistry (ARC) to access advanced intermediates, permits completion of a convergent, stereocontrolled total synthesis of the architecturally complex phosphomacrolide (-)-enigmazole A (1).
Collapse
Affiliation(s)
- Yanran Ai
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Mariya V Kozytska
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Yike Zou
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Anton S Khartulyari
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - William A Maio
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| | - Amos B Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center , University of Pennsylvania , Philadelphia , Pennsylvania 19104 , United States
| |
Collapse
|
17
|
Sakurai K, Sasaki M, Fuwa H. Total Synthesis of (-)-Enigmazole A. Angew Chem Int Ed Engl 2018; 57:5143-5146. [PMID: 29469216 DOI: 10.1002/anie.201801561] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Indexed: 11/07/2022]
Abstract
Total synthesis of (-)-enigmazole A, a marine macrolide natural product with cytotoxic activity, has been accomplished. The tetrahydropyran moiety was constructed by means of a domino olefin cross-metathesis/intramolecular oxa-Michael addition of a δ-hydroxy olefin. After coupling of advanced intermediates, the macrocycle was formed through gold-catalyzed rearrangement of a propargylic benzoate, followed by ring-closing metathesis of the resultant α,β-unsaturated ketone.
Collapse
Affiliation(s)
- Keisuke Sakurai
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Makoto Sasaki
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, 112-8551, Japan
| |
Collapse
|
18
|
Affiliation(s)
- Keisuke Sakurai
- Graduate School of Life Sciences; Tohoku University; 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
| | - Makoto Sasaki
- Graduate School of Life Sciences; Tohoku University; 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry; Faculty of Science and Engineering; Chuo University, 1-13-27 Kasuga; Bunkyo-ku Tokyo 112-8551 Japan
| |
Collapse
|
19
|
Mioso R, Marante FJT, Bezerra RDS, Borges FVP, Santos BVDO, Laguna IHBD. Cytotoxic Compounds Derived from Marine Sponges. A Review (2010-2012). Molecules 2017; 22:E208. [PMID: 28134844 PMCID: PMC6155849 DOI: 10.3390/molecules22020208] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 12/20/2022] Open
Abstract
Abstract: This extensive review covers research published between 2010 and 2012 regarding new compounds derived from marine sponges, including 62 species from 60 genera belonging to 33 families and 13 orders of the Demospongia class (Porifera). The emphasis is on the cytotoxic activity that bioactive metabolites from sponges may have on cancer cell lines. At least 197 novel chemical structures from 337 compounds isolated have been found to support this work. Details on the source and taxonomy of the sponges, their geographical occurrence, and a range of chemical structures are presented. The compounds discovered from the reviewed marine sponges fall into mainly four chemical classes: terpenoids (41.9%), alkaloids (26.2%), macrolides (8.9%) and peptides (6.3%) which, along with polyketides, sterols, and others show a range of biological activities. The key sponge orders studied in the reviewed research were Dictyoceratida, Haplosclerida, Tetractinellida, Poecilosclerida, and Agelasida. Petrosia, Haliclona (Haplosclerida), Rhabdastrella (Tetractinellida), Coscinoderma and Hyppospongia (Dictyioceratida), were found to be the most promising genera because of their capacity for producing new bioactive compounds. Several of the new compounds and their synthetic analogues have shown in vitro cytotoxic and pro-apoptotic activities against various tumor/cancer cell lines, and some of them will undergo further in vivo evaluation.
Collapse
Affiliation(s)
- Roberto Mioso
- Laboratory of Enzymology - LABENZ, Department of Biochemistry, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil.
| | - Francisco J Toledo Marante
- Department of Chemistry, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria 35017, Spain.
| | - Ranilson de Souza Bezerra
- Laboratory of Enzymology - LABENZ, Department of Biochemistry, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil.
| | - Flávio Valadares Pereira Borges
- Post-Graduation Program in Natural Products and Synthetic Bioactives, Federal University of Paraíba, João Pessoa 58051-970, Paraíba, Brazil.
| | - Bárbara V de Oliveira Santos
- Post-Graduation Program in Development and Technological Innovation in Medicines, Department of Pharmaceutical Sciences, Federal University of Paraiba, João Pessoa 58051-900, Paraíba, Brazil.
| | | |
Collapse
|
20
|
Masyuk VS, Mineeva IV. Synthesis of β-(2,2-diethoxyethyl)-substituted (allyl)tributylstannane and its application to asymmetric allylation. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016020020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Depolymerization of Polyethers to Chloroesters Using Heterogeneous Proton-exchanged Montmorillonite Catalyst. ChemistrySelect 2016. [DOI: 10.1002/slct.201600052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
22
|
Ahlers A, de Haro T, Gabor B, Fürstner A. Concise Total Synthesis of Enigmazole A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Teresa de Haro
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Barbara Gabor
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| |
Collapse
|
23
|
Ahlers A, de Haro T, Gabor B, Fürstner A. Concise Total Synthesis of Enigmazole A. Angew Chem Int Ed Engl 2015; 55:1406-11. [DOI: 10.1002/anie.201510026] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Teresa de Haro
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Barbara Gabor
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| |
Collapse
|
24
|
Abstract
![]()
A highly
convergent, stereocontrolled total synthesis of the architecturally
complex marine sponge metabolite (−)-enigmazole A has been
achieved. Highlights include an unprecedented late-stage large-fragment
Petasis–Ferrier union/rearrangement, a multicomponent Type
I Anion Relay Chemistry (ARC) tactic, and a dithiane–epoxide
union in conjunction with an oxazole-directed stereoselective reduction.
Collapse
Affiliation(s)
- Yanran Ai
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Mariya V Kozytska
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Yike Zou
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Anton S Khartulyari
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Amos B Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
25
|
Deng QH, Chen JR, Wei Q, Zhao QQ, Lu LQ, Xiao WJ. Visible-light-induced photocatalytic oxytrifluoromethylation of N-allylamides for the synthesis of CF3-containing oxazolines and benzoxazines. Chem Commun (Camb) 2015; 51:3537-40. [PMID: 25644314 DOI: 10.1039/c4cc10217g] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A visible-light-induced photocatalytic oxytrifluoromethylation reaction of N-allylamides has been developed for the efficient synthesis of CF3-containing oxazolines and benzoxazines under mild reaction conditions.
Collapse
Affiliation(s)
- Qiao-Hui Deng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China.
| | | | | | | | | | | |
Collapse
|
26
|
Pankova AS, Stukalov AY, Kuznetsov MA. Synthesis of 2-(Hetero)aryl-5-(trimethylsilylethynyl)oxazoles from (Hetero)arylacrylic Acids. Org Lett 2015; 17:1826-9. [DOI: 10.1021/acs.orglett.5b00009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Alena S. Pankova
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| | - Alexander Yu. Stukalov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| | - Mikhail A. Kuznetsov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| |
Collapse
|
27
|
Heravi MM, Ahmadi T, Ghavidel M, Heidari B, Hamidi H. Recent applications of the hetero Diels–Alder reaction in the total synthesis of natural products. RSC Adv 2015. [DOI: 10.1039/c5ra17488k] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The synthetic utility and potential power of the Diels–Alder (D–A) reaction in organic chemistry is evident.
Collapse
Affiliation(s)
| | | | | | | | - Hoda Hamidi
- Department of Chemistry
- Alzahra University
- Tehran
- Iran
| |
Collapse
|
28
|
Yu J, Yang H, Fu H. Transition Metal-Free Trifluoromethylation ofN-Allylamides with Sodium Trifluoromethanesulfinate: Synthesis of Trifluoromethyl-Containing Oxazolines. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400144] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
29
|
Salamoun J, Anderson S, Burnett J, Gussio R, Wipf P. Synthesis of heterocyclic triads by Pd-catalyzed cross-couplings and evaluation of their cell-specific toxicity profile. Org Lett 2014; 16:2034-7. [PMID: 24641272 PMCID: PMC3983320 DOI: 10.1021/ol500620m] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 12/11/2022]
Abstract
Two complementary approaches for the preparation of linked 5-membered heterocycles were developed. The Pd-catalyzed Suzuki-Miyaura cross-coupling with halogenated furan, thiophene, and selenophene led to higher overall yields, but C,H-bond activation was a more efficient strategy for the coupling at C(2) of oxazoles. Potency and selectivity of the final hydroxymethyl products in renal (A498), lung (NCI-H226), kidney (CAKI-1), and breast (MDA-MB-468, MCF7) carcinoma cell lines were determined.
Collapse
Affiliation(s)
- Joseph Salamoun
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Shelby Anderson
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - James
C. Burnett
- Leidos
Biomedical Research, Inc., Frederick National
Laboratory for Cancer Research, Computational Drug Development Group, P.O. Box B, Frederick, Maryland 21702, United States
| | - Rick Gussio
- Frederick
National Laboratory for Cancer Research, Developmental Therapeutics Program, Computational Drug Development
Group, P.O. Box B, Frederick, Maryland 21702, United States
| | - Peter Wipf
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| |
Collapse
|
30
|
Negishi coupling: an easy progress for C–C bond construction in total synthesis. Mol Divers 2014; 18:441-72. [DOI: 10.1007/s11030-014-9510-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 02/04/2014] [Indexed: 11/26/2022]
|
31
|
Ghosh AK, Shurrush KA, Dawson ZL. Enantioselective total synthesis of macrolide (+)-neopeltolide. Org Biomol Chem 2013; 11:7768-77. [PMID: 24121457 DOI: 10.1039/c3ob41541d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric total synthesis of the anti-proliferative macrolide (+)-neopeltolide has been completed. The stereochemically defined trisubstituted tetrahydropyran ring was constructed via a catalytic hetero-Diels-Alder reaction creating two new chiral centers in a highly diastereoselective manner. The other key features of this synthesis included Brown's asymmetric allylation to install the requisite C-11 and C-13 stereocenters. The synthesis of the oxazole side chain consisted of a hydrozirconation of an alkynyl stannane to establish the Z stereochemistry, followed by a palladium catalyzed cross coupling to introduce the desired Z olefin in the oxazole side chain.
Collapse
Affiliation(s)
- Arun K Ghosh
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana, USA.
| | | | | |
Collapse
|
32
|
Persich P, Llaveria J, Lhermet R, de Haro T, Stade R, Kondoh A, Fürstner A. Increasing the Structural Span of Alkyne Metathesis. Chemistry 2013; 19:13047-58. [DOI: 10.1002/chem.201302320] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Indexed: 12/22/2022]
|
33
|
Peng Z, Narcis MJ, Takenaka N. Enantio- and periselective nitroalkene Diels-Alder reactions catalyzed by helical-chiral hydrogen bond donor catalysts. Molecules 2013; 18:9982-98. [PMID: 23966083 PMCID: PMC6270221 DOI: 10.3390/molecules18089982] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 08/13/2013] [Accepted: 08/14/2013] [Indexed: 11/24/2022] Open
Abstract
Helical-chiral double hydrogen bond donor catalysts promote the nitroalkene Diels-Alder reaction in an enantio- and periselective manner. This represents the first asymmetric catalytic nitroalkene Diels-Alder reaction via LUMO-lowering catalysis. To gain an insight into this new process, the substrate scope of our catalyst was investigated by exploiting readily available 5-substituted pentamethylcyclopentadienes. The catalyst was found to tolerate dienes with different steric demands as well as dienes substituted with heteroatoms. The synthetic utility of 5-substituted pentamethylcyclopentadienes is rather limited, and thus we have developed a three-step route to 1,4,5,5-tetrasubstituted cyclopentadienes from commercially available ketones.
Collapse
Affiliation(s)
| | | | - Norito Takenaka
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-305-284-3279; Fax: +1-305-284-4571
| |
Collapse
|
34
|
Kuhl N, Schröder N, Glorius F. Rh(III)-Catalyzed Halogenation of Vinylic C–H Bonds: Rapid and General Access to Z-Halo Acrylamides. Org Lett 2013; 15:3860-3. [DOI: 10.1021/ol4015915] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Nadine Kuhl
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Nils Schröder
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| |
Collapse
|
35
|
|
36
|
Orr D, Tolfrey A, Percy JM, Frieman J, Harrison ZA, Campbell-Crawford M, Patel VK. Single-Step Microwave-Mediated Synthesis of Oxazoles and Thiazoles from 3-Oxetanone: A Synthetic and Computational Study. Chemistry 2013; 19:9655-62. [DOI: 10.1002/chem.201301011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Indexed: 11/07/2022]
|
37
|
Li X, Li C, Yin B, Li C, Liu P, Li J, Shi Z. DDQ-Induced Dehydrogenation of Heterocycles for CC Double Bond Formation: Synthesis of 2-Thiazoles and 2-Oxazoles. Chem Asian J 2013; 8:1408-11. [DOI: 10.1002/asia.201300267] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 03/18/2013] [Indexed: 11/10/2022]
|
38
|
Parenty A, Moreau X, Niel G, Campagne JM. Update 1 of: Macrolactonizations in the Total Synthesis of Natural Products. Chem Rev 2013; 113:PR1-40. [DOI: 10.1021/cr300129n] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- A. Parenty
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
| | - X. Moreau
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-Saint-Quentin-en-Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Gilles Niel
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
| | - J.-M. Campagne
- Institut de Chimie des Substances
Naturelles, Avenue de la Terrasse, F-91198 Gif sur Yvette, France
- Institut Charles Gerhardt, UMR5253, Ecole Nationale Supérieure de Chimie, 8 rue de l’Ecole Normale, F-34296 Montpellier, France
| |
Collapse
|
39
|
|
40
|
|
41
|
Lin F, Feng Q, Cui X, Song Q. Synthesis of esters from aldehydes or carboxylic acids with dichloromethane, dichloroethane or dichloropropane under mild conditions. RSC Adv 2013. [DOI: 10.1039/c3ra43615b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
|
42
|
Molinski TF, Morinaka BI. INTEGRATED APPROACHES TO THE CONFIGURATIONAL ASSIGNMENT OF MARINE NATURAL PRODUCTS. Tetrahedron 2012; 68:9307-9343. [PMID: 23814320 PMCID: PMC3694619 DOI: 10.1016/j.tet.2011.12.070] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Tadeusz F. Molinski
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
| | - Brandon I. Morinaka
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive MC0358, La Jolla, CA, 92093
| |
Collapse
|
43
|
Zhou W, Xie C, Han J, Pan Y. Catalyst-Free Intramolecular Oxidative Cyclization of N-Allylbenzamides: A New Route to 2,5-Substituted Oxazoles. Org Lett 2012; 14:4766-9. [DOI: 10.1021/ol302031z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wei Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
| | - Chen Xie
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination, Nanjing University, Nanjing, 210093, China
| |
Collapse
|
44
|
Affiliation(s)
- Irina L. Odinets
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Moscow Russia.
| |
Collapse
|
45
|
|
46
|
Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
Collapse
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | | | | | | | | |
Collapse
|
47
|
Kyne SH, Percy JM, Pullin RDC, Redmond JM, Wilson PG. One-pot near-ambient temperature syntheses of aryl(difluoroenol) derivatives from trifluoroethanol. Org Biomol Chem 2011; 9:8328-39. [DOI: 10.1039/c1ob06372c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
48
|
Synthesis of 2,4- and 2,5-Disubstituted Oxazoles via Metal- Catalyzed Cross-Coupling Reactions. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000668] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
49
|
Davyt D, Serra G. Thiazole and oxazole alkaloids: isolation and synthesis. Mar Drugs 2010; 8:2755-80. [PMID: 21139843 PMCID: PMC2996175 DOI: 10.3390/md8112755] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 10/27/2010] [Accepted: 11/04/2010] [Indexed: 12/22/2022] Open
Abstract
Thiazoles, oxazole and their corresponding reduced derivatives, thiazolines and oxazolines, are found in marine sources exhibiting significant biological activities. The isolation, synthetic, and biological studies of these natural products, covering literature from January 2007 to June 2010, are summarized.
Collapse
Affiliation(s)
- Danilo Davyt
- *Authors to whom correspondence should be addressed; E-Mails: (D.D.); (G.S.); Tel.: +598 2 9290290; Fax: +598 2 9241906
| | - Gloria Serra
- *Authors to whom correspondence should be addressed; E-Mails: (D.D.); (G.S.); Tel.: +598 2 9290290; Fax: +598 2 9241906
| |
Collapse
|