1
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Marquès C, González-Lizana D, Diaba F, Bonjoch J. Synthesis of the ABC Core of Daphniphyllum Alkaloids with a [5-6-7] Azatricyclic Scaffold via Ring Expansion of Azabicyclic and Azatricyclic Building Blocks. J Org Chem 2024; 89:10212-10222. [PMID: 38950520 PMCID: PMC11267610 DOI: 10.1021/acs.joc.4c01090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/21/2024] [Accepted: 06/26/2024] [Indexed: 07/03/2024]
Abstract
The [5-6-7] azatricyclic ABC core, found in several Daphniphyllum alkaloids, has been synthesized through a novel route involving ring expansion of a perhydroindolone to afford the AC ring system and a radical B ring closure as key steps. The level of functionalization of the reported octahydro-1,7-ethanocyclohepta[b]pyrroles suggests that they can serve as valuable building blocks in this alkaloid field. Also reported is the first synthesis of homomorphans by the ring enlargement of 2-azabicyclo[3.3.1]nonanes.
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Affiliation(s)
- Clàudia Marquès
- Laboratori de Química
Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - David González-Lizana
- Laboratori de Química
Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Faïza Diaba
- Laboratori de Química
Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Josep Bonjoch
- Laboratori de Química
Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
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2
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Zhang W, Lu M, Ren L, Zhang X, Liu S, Ba M, Yang P, Li A. Total Synthesis of Four Classes of Daphniphyllum Alkaloids. J Am Chem Soc 2023; 145:26569-26579. [PMID: 38032297 DOI: 10.1021/jacs.3c06088] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
The macrodaphniphyllamine-type, calyciphylline A-type, daphnilongeranin A-type, and daphnicyclidin D-type alkaloids are four structurally related classes of Daphniphyllum alkaloids. On the basis of a systematic analysis of the biogenetic network of these classes, we developed synthetic strategies centered on the C4-N and C1-C8 bonds of calyciphylline A, which took full advantage of the suitable substrates, reactions, and pathways that are altered from their counterparts in the postulated biogenetic network. Through this generalized biomimetic approach, we achieved the first synthesis of 14 Daphniphyllum alkaloids from the four subfamilies.
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Affiliation(s)
- Wenhao Zhang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ming Lu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Lu Ren
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiang Zhang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shaonan Liu
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Mengyu Ba
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Henan Institute of Advanced Technology and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Yang
- Henan Institute of Advanced Technology and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ang Li
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Henan Institute of Advanced Technology and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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3
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Shoemaker AH, Foker EA, Uttaro EP, Beitel SK, Griffith DR. Synthesis of 7-azabicyclo[4.3.1]decane ring systems from tricarbonyl(tropone)iron via intramolecular Heck reactions. Beilstein J Org Chem 2023; 19:1615-1619. [PMID: 37915560 PMCID: PMC10616702 DOI: 10.3762/bjoc.19.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/10/2023] [Indexed: 11/03/2023] Open
Abstract
The 7-azabicyclo[4.3.1]decane ring system, common to a number of biologically active alkaloids, was accessed from tropone (via its η4-diene complex with Fe(CO)3) in a short sequence of steps: 1) nucleophilic amine addition and subsequent Boc-protection, 2) photochemical demetallation of the iron complex, and 3) an intramolecular Heck reaction. Minor modifications to the protocol enabled access to the related 2-azabicyclo[4.4.1]undecane system, albeit in lower yield.
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Affiliation(s)
- Aaron H Shoemaker
- Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA
| | - Elizabeth A Foker
- Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA
| | - Elena P Uttaro
- Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA
| | - Sarah K Beitel
- Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA
| | - Daniel R Griffith
- Department of Chemistry, Lafayette College, 730 High St., Easton, PA 18042, USA
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4
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Duan X, Xu H, Shen Y, Liu A, He F, Hou H, Li H, Xie X, She X. Synthesis of the 5-6-7 Tricyclic Core of Daphnicyclidin-Type Alkaloids via a Tiffeneau-Demjanov Ring Enlargement Strategy. J Org Chem 2023; 88:14842-14846. [PMID: 37800749 DOI: 10.1021/acs.joc.3c01895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
An expedient construction of the 5-6-7 tricyclic core of daphnicyclidin-type alkaloids is described. The synthetically challenging cycloheptanone C ring was constructed via a Tiffeneau-Demjanov ring enlargement reaction from a 5-6-6 tricyclic precursor commonly found in calyciphylline A-type alkaloids. Other key transformations included Davis oxidation, 1,2-addition, oxidation, and dehydration to elaborate the essential cyclcohept-2-enone motif.
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Affiliation(s)
- Xiaoguang Duan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Hao Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Yijun Shen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Aohang Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Feifei He
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Huachen Hou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China
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5
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Zou YP, Lai ZL, Zhang MW, Peng J, Ning S, Li CC. Total Synthesis of (±)- and (-)-Daphnillonin B. J Am Chem Soc 2023; 145:10998-11004. [PMID: 37167083 DOI: 10.1021/jacs.3c03755] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The first total synthesis of (±)- and (-)-daphnillonin B, a daphnicyclidin-type alkaloid with a new [7-6-5-7-5-5] A/B/C/D/E/F hexacyclic core, has been achieved. The [6-5-7] B/C/D ring system was efficiently and diastereoselectively constructed via a mild type I intramolecular [5+2] cycloaddition, followed by a Grubbs II catalyst-catalyzed radical cyclization. The [5-5] fused E/F ring system was synthesized via a diastereoselective intramolecular Pauson-Khand reaction. Notably, the synthetically challenging [7-6-5-7-5-5] hexacyclic core was reassembled by a unique Wagner-Meerwein-type rearrangement from the [6-6-5-7-5-5] hexacyclic framework found in calyciphylline A-type Daphniphyllum alkaloids.
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Affiliation(s)
- Yun-Peng Zou
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zheng-Lin Lai
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meng-Wei Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jianzhao Peng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuai Ning
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
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6
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Tu J, Ripa RA, Kelley SP, Harmata M. Intramolecular (4+3) Cycloadditions of Oxidopyridinium Ions: Towards Daphnicyclidin A. Chemistry 2022; 28:e202200370. [PMID: 35612968 DOI: 10.1002/chem.202200370] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Indexed: 12/15/2022]
Abstract
N-alkylation of 5-hydroxynicotinic acid esters with electrophiles containing diene functionality produces salts that undergo intramolecular (4+3) cycloaddition reactions upon heating in the presence of base. Initial studies used a three-carbon tether to join the pyridinium ion and diene, revealing some aspects of the inherent selectivity of the reaction with such substrates. Much more challenging was the synthesis of related species possessing only a two-carbon tether. Nevertheless, the cycloaddition of such compounds was successful, leading directly to the ABC ring system of the alkaloid daphnicyclidin A.
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Affiliation(s)
- Jianzhuo Tu
- Department of Chemistry, University of Missouri-Columbia, 601 S. College Avenue, Columbia, Missouri, 65211, USA
| | - Rawshan A Ripa
- Department of Chemistry, University of Missouri-Columbia, 601 S. College Avenue, Columbia, Missouri, 65211, USA
| | - Steven P Kelley
- Department of Chemistry, University of Missouri-Columbia, 601 S. College Avenue, Columbia, Missouri, 65211, USA
| | - Michael Harmata
- Department of Chemistry, University of Missouri-Columbia, 601 S. College Avenue, Columbia, Missouri, 65211, USA
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7
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Reyes E, Prieto L, Carrillo L, Uria U, Vicario J. Recent Developments in Transannular Reactions. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1843-1954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Transannular reactions have shown a remarkable performance for the construction of polycyclic scaffolds from medium- or large sized cyclic molecules in an unconventional manner. Recent examples of transannular reactions reported from 2011 have been reviewed, emphasizing the excellent performance of this approach when accessing the target compounds. This review also highlights how this methodology provides an alternative approach to other commonly used methodologies for the construction of cyclic entities such as cyclization or cycloaddition reactions
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8
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Tu J, Clark MM, Harmata M. First synthesis of an ABCE ring substructure of daphnicyclidin A. Org Biomol Chem 2022; 20:6547-6549. [DOI: 10.1039/d2ob01246d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ABCE tetracyclic ring system of daphnicyclidin A was prepared using an intramolecular (4 + 3) cycloaddition of an oxidopyridinium ion as the key step.
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Affiliation(s)
- Jianzhuo Tu
- Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Madison M. Clark
- Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Michael Harmata
- Department of Chemistry, University of Missouri-Columbia, Columbia, Missouri 65211, USA
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9
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Hájíček J, Nečas D, Kotora M. Naturally Occurring Cyclopentadienes and Cyclopentadienyl Anions. TOP ORGANOMETAL CHEM 2022. [DOI: 10.1007/3418_2022_76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Cao F, Gao W, Wang X, Zhang Z, Yin G, Wang Y, Li Z, Shi T, Hou Y, Chen J, Wang Z. Synthesis of the Proposed Structures of Parvistemoamide and Their Transformations to Stemoamide Derivatives. Org Lett 2021; 23:6222-6226. [PMID: 34369782 DOI: 10.1021/acs.orglett.1c01045] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The proposed structures of parvistemoamide have been achieved by macrolactamization, but none of the characterization data of synthetic samples matched with those of the natural sample. The transformation of the highly strained 10-membered lactam ring in parvistemoamide into the pyrrolo[1,2-a]-azepine nucleus in stemoamide is accomplished for the first time by either transannular cyclization or Pilli's transformation. This research may promote the total synthesis of other more complex stemoamide-type or medium-sized-ring-containing Stemona alkaloids.
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Affiliation(s)
- Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Ministry of Education of China, Lanzhou 730000, Gansu, China
| | - Weiwei Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Ministry of Education of China, Lanzhou 730000, Gansu, China
| | - Xiaodong Wang
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Zhihan Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Gaofeng Yin
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Yuqing Wang
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Zhao Li
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Tao Shi
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Yongsheng Hou
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Jinhong Chen
- School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
| | - Zhen Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Ministry of Education of China, Lanzhou 730000, Gansu, China.,School of Pharmacy, Lanzhou University, Ministry of Education of China, Number 199 West Donggang Road, Lanzhou 730000, Gansu, China
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11
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Griffith DR, Shoemaker AH. Synthetic Approaches to Non-Tropane, Bridged, Azapolycyclic Ring Systems Containing Seven-Membered Carbocycles. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1707385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThis Short Review highlights various synthetic approaches to bridged azabicyclic ring systems containing seven-membered carbocyclic rings. Such ring systems are common to a number of biologically active natural products. The seven-membered ring in such systems is generally formed in one of four ways: 1) cyclization of an acyclic precursor; 2) ring expansion or rearrangement of a different ring size; 3) cycloaddition; and 4) use of a synthetic building block with the seven-membered ring already present. Representative examples of each approach from both total synthesis and methodological studies are discussed, with an emphasis on work publishedin the last twenty years.1 Introduction2 Cyclization Reactions3 Ring Expansions and Rearrangements4 Cycloadditions5 Strategies Involving Seven-Membered Ring Building Blocks6 Conclusion
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12
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Abstract
The triterpenoids Daphniphyllum alkaloids share the unique fused hexacyclic ring framework are isolated from the genus Daphniphyllum. These natural products possess comprehensive biological activities and exhibit excellent potential medicinal appliment. This review covers the reported isolation studies and biological activities of Daphniphyllum alkaloids spanning the period from 1966 to the beginning of 2020, In the meantime, the total synthesis of Daphniphyllum alkaloids will be emphatically summarized for supplement over this review series.
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13
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Wang Q, Zhang C, Yang J. Synthesis of ACE tricyclic systems of daphnicyclidin A and dehy-droxymacropodumine A. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.12.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Phelan ZK, Weiss PS, He Y, Guan Z, Thamattoor DM, Griffith DR. Synthetic Entry to the 2-Azatricyclo[4.3.2.0 4,9]undecane Ring System via Tropone. J Org Chem 2020; 85:2202-2212. [PMID: 31904976 DOI: 10.1021/acs.joc.9b02921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A synthesis of the 2-azatricyclo[4.3.2.04,9]undecane ring system-a hitherto unreported bridged azatricyclic ring system-beginning from tricarbonyl(tropone)iron and allylamine was accomplished in three steps: (1) aza-Michael addition of allylamine to tricarbonyl(tropone)iron; (2) Boc-protection of the resulting secondary amine; and (3) oxidative demetallation leading to a spontaneous intramolecular Diels-Alder reaction. The effect of a variety of parameters on the intramolecular Diels-Alder reaction was investigated, including diene and dienophile substitution patterns and dienophile tether length.
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Affiliation(s)
- Zaki K Phelan
- Department of Chemistry , Lafayette College , Easton , Pennsylvania 18042 , United States
| | - Philip S Weiss
- Department of Chemistry , Lafayette College , Easton , Pennsylvania 18042 , United States
| | - Yiqun He
- Department of Chemistry , Lafayette College , Easton , Pennsylvania 18042 , United States
| | - Ziyang Guan
- Department of Chemistry , Lafayette College , Easton , Pennsylvania 18042 , United States
| | - Dasan M Thamattoor
- Department of Chemistry , Colby College , Waterville , Maine 04901 , United States
| | - Daniel R Griffith
- Department of Chemistry , Lafayette College , Easton , Pennsylvania 18042 , United States
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15
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Abstract
Total syntheses of biologically and structurally fascinating sesterterpenoids published between Jan. 2012 and Jan. 2018 are summarized and discussed here.
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Affiliation(s)
- Yuye Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
- Department of Chemistry and Shenzhen Grubbs Institute
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Shaoping Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
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16
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Kardooni R, Kiasat AR. A green, catalyst-free synthesis of pyrazolopyranopyrimidines in polyethylene glycol as a biodegradable medium at ambient temperature. Mol Divers 2018; 23:639-649. [PMID: 30547372 DOI: 10.1007/s11030-018-9898-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/27/2018] [Indexed: 11/29/2022]
Abstract
A facile, efficient and environmentally safe strategy for the synthesis of pyrazolopyranopyrimidines via one-pot, four-component reaction of hydrazine hydrate, barbituric acid, ethyl acetoacetate, and aromatic aldehydes in polyethylene glycol (PEG) as a safe solvent in the absence of catalyst at ambient temperature has been described. The advantages of the present protocol, such as simplicity, mild conditions, high yields of products, straightforward workup procedure, a green and biodegradable reaction medium, make this new process an attractive to current methodologies.
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Affiliation(s)
- Rezvan Kardooni
- Department of Chemistry, Khuzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran. .,Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Ali Reza Kiasat
- Chemistry Department, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, 61357-4-3169, Iran
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17
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Ramesh R, Tamilselvi V, Vadivel P, Lalitha A. Innovative Green Synthesis of 4-Aryl-Pyrazolo[5,6]Pyrano [2,3-d]Pyrimidines under Catalyst-Free Conditions. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1484780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rathinam Ramesh
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
| | | | - Pullar Vadivel
- Department of Chemistry, Salem Sowdeswari College, Salem, Tamil Nadu, India
| | - Appaswami Lalitha
- Department of Chemistry, Periyar University, Salem, Tamil Nadu, India
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18
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Pandey G, Khamrai J, Mishra A, Maity P, Chikkade PK. Iminium ion-enamine cascade reaction enables the asymmetric total syntheses of aspidosperma alkaloids vincadifformine and ervinceine. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Pandey G, Mishra A, Khamrai J. Generation of all carbon quaternary stereocenters at the C-3 carbon of piperidinones and pyrrolidinones and its application in natural product total synthesis. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Pandey G, Khamrai J, Mishra A. Generation of All-Carbon Quaternary Stereocenters at the C-3 Carbon of Lactams via [3,3]-Sigmatropic Rearrangement and Revision of Absolute Configuration: Total Synthesis of (−)-Physostigmine. Org Lett 2017; 20:166-169. [DOI: 10.1021/acs.orglett.7b03537] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Jagadish Khamrai
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
| | - Akash Mishra
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India
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21
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Seizert CA, Ferreira EM. A boron-based Ireland-Claisen approach to the synthesis of pordamacrine A. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Li JL, Shi HW, Wang Q, Chai YH, Yang J. Synthesis of the ABC Tricyclic System of Daphnicyclidin A. Org Lett 2017; 19:1497-1499. [PMID: 28296406 DOI: 10.1021/acs.orglett.7b00230] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Long Li
- Innovative Research Center
of Medicine, Key laboratory of Macromolecular Science of Shaanxi Province,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an
Avenue, Chang’an District, Xi’an 710119, China
| | - Hong Wei Shi
- Innovative Research Center
of Medicine, Key laboratory of Macromolecular Science of Shaanxi Province,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an
Avenue, Chang’an District, Xi’an 710119, China
| | - Qi Wang
- Innovative Research Center
of Medicine, Key laboratory of Macromolecular Science of Shaanxi Province,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an
Avenue, Chang’an District, Xi’an 710119, China
| | - Yong Hai Chai
- Innovative Research Center
of Medicine, Key laboratory of Macromolecular Science of Shaanxi Province,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an
Avenue, Chang’an District, Xi’an 710119, China
| | - Jun Yang
- Innovative Research Center
of Medicine, Key laboratory of Macromolecular Science of Shaanxi Province,
School of Chemistry and Chemical Engineering, Shaanxi Normal University, Chang’an Campus: No. 620, West Chang’an
Avenue, Chang’an District, Xi’an 710119, China
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Chattopadhyay AK, Hanessian S. Recent Progress in the Chemistry of Daphniphyllum Alkaloids †. Chem Rev 2017; 117:4104-4146. [PMID: 28205435 DOI: 10.1021/acs.chemrev.6b00412] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Daphniphyllum is an evergreen species known since 1826. After initial systematic investigations, more than 320 members of this family have been isolated, which comprise complex and fascinating structures. Unique azapolycyclic architectures containing one or more quaternary stereocenters render these alkaloids synthetically challenging. This review covers efforts toward the synthesis of Daphniphyllum alkaloids spanning the period from 2005 to the beginning of 2016, including reported biological activities as well as the isolation of new members of this genus.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal , Post Office Box 6128, Station Centre Ville, Montreal, Quebec H3C 3J7, Canada
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal , Post Office Box 6128, Station Centre Ville, Montreal, Quebec H3C 3J7, Canada
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Boudreault J, Lévesque F, Bélanger G. Studies toward Total Synthesis of (±)-Caldaphnidine C via One-Pot Sequential Intramolecular Vilsmeier–Haack and Azomethine Ylide 1,3-Dipolar Cycloaddition. J Org Chem 2016; 81:9247-9268. [DOI: 10.1021/acs.joc.6b01835] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Boudreault
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - François Lévesque
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - Guillaume Bélanger
- Département de Chimie, Université de Sherbrooke, 2500 boulevard
Université, Sherbrooke, Québec, J1K 2R1, Canada
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Tikad A, Delbrouck JA, Vincent SP. Debenzylative Cycloetherification: An Overlooked Key Strategy for Complex Tetrahydrofuran Synthesis. Chemistry 2016; 22:9456-76. [DOI: 10.1002/chem.201600655] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Abdellatif Tikad
- University of Namur (UNamur); Département de Chimie; Laboratoire de Chimie Bio-Organique; rue de Bruxelles 61 5000 Namur Belgium
| | - Julien A. Delbrouck
- University of Namur (UNamur); Département de Chimie; Laboratoire de Chimie Bio-Organique; rue de Bruxelles 61 5000 Namur Belgium
| | - Stéphane P. Vincent
- University of Namur (UNamur); Département de Chimie; Laboratoire de Chimie Bio-Organique; rue de Bruxelles 61 5000 Namur Belgium
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26
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Chattopadhyay AK, Menz H, Ly VL, Dorich S, Hanessian S. Synthesis of a Model Tetracyclic Core Structure of Calyciphylline B-Type Alkaloids. J Org Chem 2016; 81:2182-8. [PMID: 26878089 DOI: 10.1021/acs.joc.5b02875] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report the enantioselective synthesis of a functionalized aza-octahydropentalene and its elaboration to a model tetracyclic core structure of calyciphylline B-type alkaloids.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Helge Menz
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Vu Linh Ly
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Stéphane Dorich
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, QC, H3C 3J7, Canada
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28
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Chattopadhyay AK, Ly VL, Jakkepally S, Berger G, Hanessian S. Total Synthesis of Isodaphlongamine H: A Possible Biogenetic Conundrum. Angew Chem Int Ed Engl 2016; 55:2577-81. [DOI: 10.1002/anie.201510861] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Vu Linh Ly
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Shashidhar Jakkepally
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Gilles Berger
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Stephen Hanessian
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
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Stockdill JL, Lopez AM, Ibrahim AA. Toward the ABCD Core of the Calyciphylline A-Type Daphniphyllum Alkaloids: Solvent non-Innocence in Neutral Aminyl Radical Cyclizations. Tetrahedron Lett 2015; 56:3503-3506. [PMID: 26028785 DOI: 10.1016/j.tetlet.2015.01.121] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The Daphniphyllum alkaloids remain an attractive target in the synthetic community because of their unique framework and promising biological activities. We have shown that the ABC core of the calyciphylline A-type alkaloids can be rapidly accessed via the tandem cyclization of a neutral aminyl radical with a polarized cyclic olefin. Deuterium labeling experiments and reactions omitting a tin hydride reagent suggest that the solvent is the major source of the terminating hydrogen atom in the cyclization cascade. Incorporation of an internal alkyne in the radical pathway was tolerated in the reaction, and it provided the necessary atoms to enable completion of the D ring of the calyciphylline A-type alkaloids.
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Affiliation(s)
- Jennifer L Stockdill
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | - Alberto M Lopez
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
| | - Ahmad A Ibrahim
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
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Pandey G, Khamrai J, Mishra A. An Expeditious Route to Both Enantiomers of All Carbon Quaternary Stereocenters at C-3 Carbon of Lactams via [3,3]-Sigmatropic Rearrangement: Total Synthesis of (−)-Physostigmine. Org Lett 2015; 17:952-5. [DOI: 10.1021/ol503766y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ganesh Pandey
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow-226014, India
| | - Jagadish Khamrai
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow-226014, India
| | - Akash Mishra
- Molecular Synthesis and Drug
Discovery Laboratory, Centre of Biomedical Research, SGPGIMS Campus, Lucknow-226014, India
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Guo JJ, Li Y, Cheng B, Xu T, Tao C, Yang X, Zhang D, Yan G, Zhai H. Expedient Construction of the [5-6-7] Tricyclic Core of Calyciphylline A-Type Alkaloids. Chem Asian J 2014; 10:865-8. [DOI: 10.1002/asia.201403061] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Indexed: 11/09/2022]
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34
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Crimmins MT, Knight JD, Williams PS, Zhang Y. Stereoselective synthesis of quaternary carbons via the dianionic Ireland-Claisen rearrangement. Org Lett 2014; 16:2458-61. [PMID: 24735235 PMCID: PMC4018138 DOI: 10.1021/ol5008422] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Indexed: 01/02/2023]
Abstract
A dianionic Ireland-Claisen rearrangement of chiral, nonracemic α-methyl-β-hydroxy allylic esters has been developed that proceeds with high diastereoselectivity and provides products containing three contiguous stereogenic carbons, including a quaternary center. The potential utility of the rearrangement for complex molecule synthesis is also demonstrated.
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Affiliation(s)
- Michael T. Crimmins
- Kenan, Caudill, Murray and
Venable Laboratories of Chemistry University
of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - John D. Knight
- Kenan, Caudill, Murray and
Venable Laboratories of Chemistry University
of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Philip S. Williams
- Kenan, Caudill, Murray and
Venable Laboratories of Chemistry University
of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yan Zhang
- Kenan, Caudill, Murray and
Venable Laboratories of Chemistry University
of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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35
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Li XT, Zhao AD, Mo LP, Zhang ZH. Meglumine catalyzed expeditious four-component domino protocol for synthesis of pyrazolopyranopyrimidines in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c4ra08689a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of structurally diverse tricyclic fused pyrazolopyranopyrimidines by one-pot, four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and barbituric acid in water.
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Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Ai-Dong Zhao
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Li-Ping Mo
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
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