1
|
Xu L, Ma H, An X, Zhang T, Lai D, Zhou L, Wang M. Total Synthesis, structure revision and antifungal activity of palmarumycin B 8 and B 7. Bioorg Chem 2024; 148:107479. [PMID: 38772292 DOI: 10.1016/j.bioorg.2024.107479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/23/2024]
Abstract
Palmarymycins B8 (1), its regioisomer (2) and B7 (3) were synthesized via 10-, 9-, and 11-steps in 6.5 %, 2.3 % and 0.54 % overall yields from chroman-4-one (4), 4-hydroxyindanone (12), and 2,5-dimethoxybenzaldehyde (20) as the starting materials, using benzyl protection, enol trimethylsilyl ether by TMSOTf, Rubottom oxidation and deprotection with hydrogenation under Pd/C catalyst as the key steps, respectively. Their structures were characterized by 1H, 13C NMR, COSY, HSQC, HMBC and HR-ESI-MS spectral data. The structure of palmarumycin B8 was revised from 1 to 2 based on the total synthesis, 2D NMR analysis and DFT calculation. The antifungal assay results indicated that palmarumycin B8 (1) showed moderate inhibitory activity against Phytophthora capsica. Compounds 15 and 16 exhibited excellent in vitro antifungal activities against P. capsica with EC50 values of 2.17 and 8.50 μg/mL, respectively.
Collapse
Affiliation(s)
- Leichuan Xu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China; Hebei Shengxue Dacheng Pharmaceutical Co., Ltd., Luancheng District 051432, Hebei Province, People's Republic of China.
| | - Haoyun Ma
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Xinkun An
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Tingting Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, People's Republic of China.
| | - Mingan Wang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China.
| |
Collapse
|
2
|
Dahiya P, Yadav A, Peddinti RK. Spirocyclization and Michael addition of 3-benzylidene succinimides: route to spirocyclopentapyrrolidine-tetraones and benzylidene N-arylpyrrolidine-diones. Org Biomol Chem 2023; 21:9192-9199. [PMID: 37955962 DOI: 10.1039/d3ob01629c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Reactions of 3-benzylidene succinimides with 2-substituted 2-hydroxy-indane-1,3-diones and unsaturated pyrazolones are carried out under basic conditions to afford spirocyclized derivatives and Michael adducts, respectively, with high regio- and stereo-selectivities. The most notable aspect of the reaction is the ability of highly reactive benzylidene succinimide to act as both an electrophile and a nucleophile causing spirocyclization. The reaction proceeded under mild and metal-free conditions and products were isolated in good to high yields. The current strategy utilizes simple and easily accessible precursors, and provides functionally rich products of medicinal interest with two to four contiguous stereogenic centres and complete regioselectivity with excellent diastereoselectivity.
Collapse
Affiliation(s)
- Pooja Dahiya
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Anoop Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Rama Krishna Peddinti
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| |
Collapse
|
3
|
Parhami A, Yavari I, Najafi GR. A consecutive synthesis of spiro[cyclopenta[b]pyrrole-5,2'-indene] derivatives via spirocyclization/annulation reactions. Mol Divers 2023; 27:2001-2013. [PMID: 36224502 DOI: 10.1007/s11030-022-10535-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/23/2022] [Indexed: 10/17/2022]
Abstract
The reaction between ninhydrin-malononitrile adduct [2-(1,3-dioxo-1,3-dihydro-2H-inden-2-ylidene)malononitrile] and ethyl 2-(alkylamino)-4-aryl-4-oxo-but-2-enoates (prepared from ethyl 2,4-dioxo-4-arylbutanoate and alkylamines) in the presence of Et3N in MeCN at room temperature afforded 3-alkylamino-2-aryloyl-1',3',4-trioxo-1',3'-dihydrospiro[cyclopentane-1,2'-inden]-2-ene-5,5-dicarbonitriles in 78-95% yields. Five derivatives of these NH-acidic compounds are used to intercept the reactive zwitterionic intermediates generated from dimethyl acetylenedicarboxylate and Ph3P to produce dimethyl 4,4-dicyano-6-aryloyl-1-alkyl-1',3'-dioxo-1',2,3',4-tetrahydro-1H-spiro[cyclopenta[b]pyrrole-5,2'-indene]-2,3-dicarboxylates. Radical scavenging activity of four derivatives was investigated by radical trapping of diphenylpicrylhydrazine and ferric reduction power experiments. The antibacterial activities of six derivatives were studied by disk diffusion test on Gram-positive and Gram-negative bacteria.
Collapse
Affiliation(s)
- Azadeh Parhami
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Issa Yavari
- Department of Chemistry, Tarbiat Modares University, Tehran, P.O. Box 14115-175, Iran.
| | | |
Collapse
|
4
|
Das S, Dutta A. Annulations involving 1-indanones to access fused- and spiro frameworks. RSC Adv 2022; 12:33365-33402. [PMID: 36425193 PMCID: PMC9679735 DOI: 10.1039/d2ra06635a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/16/2022] [Indexed: 11/15/2023] Open
Abstract
Indanones are prominent motifs found in number of natural products and pharmaceuticals. Particularly, 1-indanones occupy important niche in chemical landscape due to their easy accessibility and versatile reactivity. In the past few years, significant advancement has been achieved regarding cyclization of 1-indanone core. The present review focuses on recent (2016-2022) annulations involving 1-indanones for the construction of fused- and spirocyclic frameworks. In this context, new strategies for synthesis of various carbocyclic as well as heterocyclic skeletons are demonstrated. Mechanistic aspects of representative reactions are illustrated for better understanding of reaction pathways. A large number of transformations described in this review offer stereoselective formation of desired polycyclic compounds. Importantly, several reactions provide biologically relevant compounds and natural products, such as, plecarpenene/plecarpenone, swinhoeisterol A, cephanolides A-D, diptoindonesin G and atlanticone C.
Collapse
Affiliation(s)
- Suven Das
- Department of Chemistry, Rishi Bankim Chandra College for Women Naihati 24-Parganas (N) 743165 India
| | - Arpita Dutta
- Department of Chemistry, Rishi Bankim Chandra Evening College Naihati 24-Parganas (N) 743165 India
| |
Collapse
|
5
|
Das S. Recent applications of 1,3-indanedione in organic transformations for the construction of fused- and spiro scaffolds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
6
|
Ali R, Ahmed W, Jayant V, alvi S, Ahmed N, Ahmed A. Metathesis reactions in total‐ and natural product fragments syntheses. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rashid Ali
- Jamia Millia Islamia New Delhi India 110025 Department of Chemistry Jamia Nagar,New Delhi india110025 110025 New Delhi INDIA
| | - Waqar Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Vikrant Jayant
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - shakeel alvi
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Nadeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Azeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| |
Collapse
|
7
|
Design and synthesis of C3-symmetric molecules containing oxepine and benzofuran moieties via Metathesis. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
8
|
Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry Indian Institute of Technology-Bombay, Powai Mumbai 400076 India
| | - Ambareen Fatma
- Department of Chemistry Indian Institute of Technology-Bombay, Powai Mumbai 400076 India
| |
Collapse
|
9
|
Abstract
AbstractCyclopentanoids and their derivatives are interesting targets in synthetic organic chemistry due to their extensive applications in various branches of chemical sciences like pharmaceuticals, natural and non-natural products. In view of these applications, several synthetic strategies have been developed in the past three to four decades. In this article, we describe our work towards the synthesis of cyclopentanoids and their heteroanalogs involving diverse synthetic strategies during the past two decades. Among these, photo-thermal olefin metathesis, ring-closing metathesis, ring-rearrangement metathesis, cyclopentane annulation, [2+2+2] cycloaddition and Diels–Alder reactions have been used to assemble cyclopentane rings of diverse architecture. 1 Introduction 2 Synthesis of Spiro[4.4]nonane (A1) Derivatives 3 Synthesis of Octahydropentalene (A2) Derivatives 4 Synthesis of Linear Triquinanes (A3) 5 Synthesis Spiro Triquinanes (A4) 6 Synthesis of Angular Triquinane (A5) Systems 7 Synthesis of Hexahydro-2′H-spiro[cyclopentane-1,1′-pentalene] (A6) Ring System 8 Synthesis of Dispiro[4.1.47.25]tridecane (A7) Ring System 9 Synthesis of Hexahydro-1H-3a,7a-propanoindene Ring System10 Synthesis of Linear Tetraquinanes (A11 and A12)11 Synthesis of Tetrahydro-1′H,3′H-dispiro[cyclopentane-1,2′-pentalene-5′,1′′-cyclopentane] (A13) Ring System12 Synthesis of Decahydro-1H,8H-dicyclopenta[a,h]pentalene (A14) Ring System13 Synthesis of Dodecahydro-1H-dicyclopenta[a,d]pentalene (A15) Ring System14 Synthesis of Octahydro-1′H-spiro[cyclopentane-1,2′-cyclopenta[c]pentalene] (A16) Ring System15 Synthesis of Decahydrospiro[cyclopentane-1,7′-cyclopenta-[a]pentalene] (A17) Ring System16 Synthesis of Compact Tetraquinane (A18)17 Synthesis of Higher Polyquinanes18 Conclusions19 Acronyms
Collapse
|
10
|
Xu F, Liang Y, Ren J, Wang S, Zhan J. Discovery of a novel analogue of FR901533 and the corresponding biosynthetic gene cluster from Streptosporangium roseum No. 79089. Appl Microbiol Biotechnol 2020; 104:7131-7142. [DOI: 10.1007/s00253-020-10765-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 11/29/2022]
|
11
|
Hui Z, Jiang S, Qi X, Ye XY, Xie T. Investigating the microwave-accelerated Claisen rearrangement of allyl aryl ethers: Scope of the catalysts, solvents, temperatures, and substrates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Kotha S, Cheekatla SR. Synthesis and Acid Catalyzed Rearrangement of Cage Propellanes. ChemistrySelect 2019. [DOI: 10.1002/slct.201903441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sambasivarao Kotha
- Department of ChemistryIndian Institute of Technology-Bombay, Powai India
| | | |
Collapse
|