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Stepakov AV, Filatov AS, Larina AG, Petrov ML, Boitsov VM. Synthesis of Quinolino[1,2-c]quinazolin-6-one Derivatives via Formal (4+2)-Cycloaddition of Alkenes to Quinazolinе-Derived N-Acyliminium Cations: An Experimental and Theoretical Study. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1755-2061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Abstract3-Aryl-4-hydroxy-1-methyl-3,4-dihydroquinazolin-2(1H)-ones were synthesized by reduction of 3-aryl-1-methylquinazoline-2,4(1H,3H)-diones with sodium triethylborohydride and studied as precursors of N-acyliminium cations that were expected to be trapped with various alkenes as (4+2)-cycloadducts. Unsubstituted 3-aryl-4-hydroxy-1-methyl-3,4-dihydroquinazolin-2(1H)-ones in the presence of BF3·Et2O failed to produce the desired cycloadducts probably due to a homooligomerization reaction involving N-acyliminium intermediates. To prevent this side reaction, we found it necessary to introduce substituents at both positions C6 and C8 of the quinazoline ring and C4′ of the 3-phenyl substituent. Utilizing bromine atoms as substituents at C6 and C8, N-acyliminium cations generated from 3-aryl-6,8-dibromo-4-hydroxy-1-methyl-3,4-dihydroquinazolin-2(1H)-ones in the presence of BF3·Et2O smoothly reacted with such alkenes as indene, acenaphthylene, styrene, α-methylstyrene to give new quinolino[1,2-c]quinazolin-6-one derivatives with high regio- and stereoselectivity. Density functional theory calculations were performed at the M06-2x/cc-pVDZ level to obtain an insight into the mechanism of the (4+2)-cycloaddition reaction of quinazoline-derived N-acyliminium cations to alkenes.
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Affiliation(s)
| | | | | | | | - Vitali M. Boitsov
- Saint Petersburg National Research Academic University of the Russian Academy of Sciences
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Dawange MA, Urmode TD, Khan A, Kusurkar RS. Acid Catalyzed Synthesis of Spiroindolone Scaffolds by Iso‐Pictet‐Spengler Spirocyclisation and Evaluation of their Antibacterial Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201700215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Monali A. Dawange
- Department of ChemistrySavitribai Phule Pune University, Ganeshkhind Pune- 411007 India
| | - Tukaram D. Urmode
- Department of ChemistrySavitribai Phule Pune University, Ganeshkhind Pune- 411007 India
| | - Ayesha Khan
- Department of ChemistrySavitribai Phule Pune University, Ganeshkhind Pune- 411007 India
| | - Radhika S. Kusurkar
- Department of ChemistrySavitribai Phule Pune University, Ganeshkhind Pune- 411007 India
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Amiri Tehranizadeh Z, Baratian A, Hosseinzadeh H. Russian olive ( Elaeagnus angustifolia) as a herbal healer. BIOIMPACTS 2016; 6:155-167. [PMID: 27853679 PMCID: PMC5108988 DOI: 10.15171/bi.2016.22] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 07/31/2016] [Accepted: 08/21/2016] [Indexed: 11/21/2022]
Abstract
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Introduction:Elaeagnus spp. is one in the family of riparian trees growing near the rivers or water corridors. In this family, Elaeagnus angustifolia (Russian olive) is famous because of its medical applications.
Methods: A comprehensive review was performed to extract the related data from published literature.
Results: Traditionally, it has been used as an analgesic, antipyretic and diuretic herbal medicine. A large number of compounds have been derived from Russian olive and made this plant a source of flavonoids, alkaloids, minerals and vitamins. Although the purpose of most studies is to use this plant for preparation of herbal medicines and as an ingredient for drug formulation, there is no available drug dosage form commercially.
Conclusion: This review aimed to provide the most important documentary information on the active components of Elaeagnus spp. and their relation to the pharmacological properties and compare them with reported medicinal effects.
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Affiliation(s)
- Zeinab Amiri Tehranizadeh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Baratian
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Butani HH, Vachhani DD, Bhoya UC, Shah AK, Van der Eycken EV. Remote Amide-Controlled Gold-Catalyzed Stereoselective Hydro-heteroarylation of Acrylamides: Access to Pyrido[3,4-b]indoles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403682] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Lancianesi S, Palmieri A, Petrini M. Synthetic Approaches to 3-(2-Nitroalkyl) Indoles and Their Use to Access Tryptamines and Related Bioactive Compounds. Chem Rev 2014; 114:7108-49. [DOI: 10.1021/cr400676v] [Citation(s) in RCA: 238] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Stefano Lancianesi
- School
of Science and Technology,
Chemistry Division, Università di Camerino, via S. Agostino,
1, I-62032 Camerino, Italy
| | - Alessandro Palmieri
- School
of Science and Technology,
Chemistry Division, Università di Camerino, via S. Agostino,
1, I-62032 Camerino, Italy
| | - Marino Petrini
- School
of Science and Technology,
Chemistry Division, Università di Camerino, via S. Agostino,
1, I-62032 Camerino, Italy
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Zanwar MR, Kavala V, Gawande SD, Kuo CW, Huang WC, Kuo TS, Huang HN, He CH, Yao CF. FeCl3 Catalyzed Regioselective C-Alkylation of Indolylnitroalkenes with Amino Group Substituted Arenes. J Org Chem 2014; 79:1842-9. [DOI: 10.1021/jo4025368] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Manoj R. Zanwar
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Veerababurao Kavala
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Sachin D. Gawande
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Chun-Wei Kuo
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Wen-Chang Huang
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Ting-Shen Kuo
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Hsiu-Ni Huang
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Chiu-Hui He
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
| | - Ching-Fa Yao
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, Taiwan 116, R.O.C
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Eftekhari-Sis B, Zirak M, Akbari A. Arylglyoxals in Synthesis of Heterocyclic Compounds. Chem Rev 2013; 113:2958-3043. [DOI: 10.1021/cr300176g] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bagher Eftekhari-Sis
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
| | - Maryam Zirak
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran,
Iran
| | - Ali Akbari
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
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Yeung BKS, Zou B, Rottmann M, Lakshminarayana SB, Ang SH, Leong SY, Tan J, Wong J, Keller-Maerki S, Fischli C, Goh A, Schmitt EK, Krastel P, Francotte E, Kuhen K, Plouffe D, Henson K, Wagner T, Winzeler EA, Petersen F, Brun R, Dartois V, Diagana TT, Keller TH. Spirotetrahydro beta-carbolines (spiroindolones): a new class of potent and orally efficacious compounds for the treatment of malaria. J Med Chem 2010; 53:5155-64. [PMID: 20568778 PMCID: PMC6996867 DOI: 10.1021/jm100410f] [Citation(s) in RCA: 318] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
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The antiplasmodial activity of a series of spirotetrahydro β-carbolines is described. Racemic spiroazepineindole (1) was identified from a phenotypic screen on wild type Plasmodium falciparum with an in vitro IC50 of 90 nM. Structure−activity relationships for the optimization of 1 to compound 20a (IC50 = 0.2 nM) including the identification of the active 1R,3S enantiomer and elimination of metabolic liabilities is presented. Improvement of the pharmacokinetic profile of the series translated to exceptional oral efficacy in the P. berghei infected malaria mouse model where full cure was achieved in four of five mice with three daily doses of 30 mg/kg.
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Affiliation(s)
- Bryan K S Yeung
- Novartis Institute for Tropical Diseases, 10 Biopolis Road, no. 05-01 Chromos, Singapore 138670.
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Kusurkar RS, Alkobati NA, Gokule AS, Puranik VG. Use of the Pictet–Spengler reaction for the synthesis of 1,4-disubstituted-1,2,3,4-tetrahydro-β-carbolines and 1,4-disubstituted-β-carbolines: formation of γ-carbolines. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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