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Eldin ZE, Dishisha T, Sayed OM, Salama HM, Farghali A. A novel synergistic enzyme-antibiotic therapy with immobilization of mycobacteriophage Lysin B enzyme onto Rif@UiO-66 nanocomposite for enhanced inhaled anti-TB therapy; Nanoenzybiotics approach. Int J Biol Macromol 2024; 262:129675. [PMID: 38280693 DOI: 10.1016/j.ijbiomac.2024.129675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/01/2024] [Accepted: 01/20/2024] [Indexed: 01/29/2024]
Abstract
The emergence of antibiotic-resistant and phage-resistant strains of Mycobacterium tuberculosis (M. tuberculosis) necessitates improving new therapeutic plans. The objective of the current work was to ensure the effectiveness of rifampicin and the mycobacteriophage LysB D29 (LysB)enzyme in the treatment of multi-drug resistant tuberculosis (MDR-TB) infection, where new and safe metal-organic framework (MOF) nanoparticles were used in combination. UiO-66 nanoparticles were synthesized under mild conditions in which the antimycobacterial agent (rifampicin) was loaded (Rif@UiO-66) and LysB D29 enzyme immobilized onto Rif@UiO-66, which were further characterized. Subsequently, the antibacterial activity of different ratios of Rif@UiO-66 and LysB/Rif@uio-66 against the nonpathogenic tuberculosis model Mycobacterium smegmatis (M. smegmatis) was evaluated by minimum inhibitory concentration (MIC) tests. Impressively, the MIC of LysB/Rif@uio-66 was 16-fold lower than that of pure rifampicin. In vitro and in vivo toxicity studies proved that LysB/Rif@UiO-66 is a highly biocompatible therapy for pulmonary infection. A biodistribution assay showed that LysB/Rif@UiO-66 showed a 5.31-fold higher drug concentration in the lungs than free rifampicin. A synergistic interaction between UiO-66, rifampicin and the mycobacteriophage lysB D29 enzyme was shown in the computational method (docking). Therefore, all results indicated that the LysB/Rif@UiO-66 nanocomposite exhibited promising innovative enzyme-antibiotic therapy for tuberculosis treatment.
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Affiliation(s)
- Zienab E Eldin
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, 62511 Beni-Suef, Egypt.
| | - Tarek Dishisha
- Department of Pharmaceutical Microbiology and Immunology, Faculty of Pharmacy, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Ossama M Sayed
- Department of Pharmaceutics, Faculty of Pharmacy, Sinai University-Kantara Branch, Ismailia 41636, Egypt
| | - Hanaa M Salama
- Department of Chemistry, Faculty of Science, Port Said University, Port Said, Egypt
| | - Ahmed Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, 62511 Beni-Suef, Egypt
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Sehim AE, Amin BH, Yosri M, Salama HM, Alkhalifah DH, Alwaili MA, Abd Elghaffar RY. GC-MS Analysis, Antibacterial, and Anticancer Activities of Hibiscus sabdariffa L. Methanolic Extract: In Vitro and In Silico Studies. Microorganisms 2023; 11:1601. [PMID: 37375103 DOI: 10.3390/microorganisms11061601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The emergence of bacteria that are resistant to several antibiotics has represented a serious hazard to human health globally. Bioactive metabolites from medicinal plants have a wide spectrum of therapeutic possibilities against resistant bacteria. Therefore, this study was performed to investigate the antibacterial efficacy of various extracts of three medicinal plants as Salvia officinalis L., Ziziphus spina-christi L., and Hibiscus sabdariffa L. against pathogenic Gram-negative Enterobacter cloacae (ATCC13047), Pseudomonas aeruginosa (RCMB008001), Escherichia coli (RCMB004001), and Gram-positive Staphylococcus aureus (ATCC 25923), bacteria using the agar-well diffusion method. Results revealed that, out of the three examined plant extracts, the methanol extract of H. sabdariffa L. was the most effective against all tested bacteria. The highest growth inhibition (39.6 ± 0.20 mm) was recorded against E. coli. Additionally, the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of the methanol extract of H. sabdariffa were detected in the case of all tested bacteria. Moreover, an antibiotic susceptibility test revealed that all tested bacteria showed multidrug resistance (MDR). While 50% of tested bacteria were sensitive and 50% were intermediately sensitive to piperacillin/tazobactam (TZP) based on the inhibition zone but still less than the extract. Synergistic assay demonstrated the promising role of using a combination of H. sabdariffa L. and (TZP) against tested bacteria. A surface investigation using a scanning electron microscope of the E. coli treated with TZP, extract, or a combination of the two revealed extremely considerable bacterial cell death. In addition, H. sabdariffa L. has a promising anticancer role versus Caco-2 cells with IC50 of 17.51 ± 0.07 µg/mL and minimal cytotoxicity upon testing versus Vero cells with CC50 of 165.24 ± 0.89 µg/mL. Flow cytometric analysis confirmed that H. sabdariffa extract significantly increased the apoptotic rate of Caco-2-treated cells compared to the untreated group. Furthermore, GC-MS analysis confirmed the existence of various bioactive components in the methanol hibiscus extract. Utilizing molecular docking with the MOE-Dock tool, binding interactions between n-Hexadecanoic acid, hexadecanoic acid-methyl ester, and oleic acid, 3-hydroxypropyl ester were evaluated against the target crystal structures of E. coli (MenB) (PDB ID:3T88) and the structure of cyclophilin of a colon cancer cell line (PDB ID: 2HQ6). The observed results provide insight into how molecular modeling methods might inhibit the tested substances, which may have applications in the treatment of E. coli and colon cancer. Thus, H. sabdariffa methanol extract is a promising candidate to be further investigated for developing alternative natural therapies for infection treatment.
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Affiliation(s)
- Amira E Sehim
- Botany and Microbiology Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Basma H Amin
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11787, Egypt
| | - Mohammed Yosri
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11787, Egypt
| | - Hanaa M Salama
- Department of Chemistry, Faculty of Science, Port Said University, Port Said 42521, Egypt
| | - Dalal Hussien Alkhalifah
- Department of Biology, Collage of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Maha Abdullah Alwaili
- Department of Biology, Collage of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Rasha Y Abd Elghaffar
- Botany and Microbiology Department, Faculty of Science, Benha University, Benha 13518, Egypt
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Mashraqi A, Modafer Y, Al Abboud MA, Salama HM, Abada E. HPLC Analysis and Molecular Docking Study of Myoporum serratum Seeds Extract with Its Bioactivity against Pathogenic Microorganisms and Cancer Cell Lines. Molecules 2023; 28:molecules28104041. [PMID: 37241781 DOI: 10.3390/molecules28104041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Natural constituents have been utilized to avoid humanity from various diseases, such as microbial infection and cancer, over several decades due to bioactive compounds. Myoporum serratum seeds extract (MSSE) was formulated via HPLC for flavonoid and phenolic analysis. Moreover, antimicrobial via well diffusion method, antioxidant via 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method, anticancer activities against HepG-2 cells (human hepatocellular cancer cell line), and MCF-7 cells (human breast cancer cell line), and molecular docking of the main detected flavonoid and phenolic compounds with the cancer cells were performed. The phenolic acids, including cinnamic acid (12.75 µg/mL), salicylic acid (7.14 µg/mL), and ferulic (0.97 µg/mL), while luteolin represents the main detected flavonoid with a concentration of 10.74 µg/mL, followed by apegenin 8.87 µg/mL were identified in MSSE. Staphylococcus aureus, Bacillus subtilis, Proteus vulgaris, and Candida albicans were inhibited by MSSE with 24.33, 26.33, 20.67, and 18.33 mm of inhibition zone, respectively. MSSE exhibited a low inhibition zone of 12.67 mm against Escherichia coli while showing no inhibitory activity against Aspergillus fumigatus. The values of MIC ranged from 26.58 to 136.33 µg/mL for all tested microorganisms. MBC/MIC index and cidal properties were attributed to MSSE for all tested microorganisms except E. coli. MSSE demonstrated anti-biofilm 81.25 and 50.45% of S. aureus and E. coli, respectively. IC50 of the antioxidant activity of MSSE was 120.11 µg/mL. HepG-2 and MCF-7 cell proliferation were inhibited with IC50 140.77 ± 3.86 µg/mL and 184.04 µg/mL, respectively. Via Molecular docking study, luteolin and cinnamic acid have inhibitory action against HepG-2 and MCF-7 cells, supporting the tremendous anticancer of MSSE.
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Affiliation(s)
- Abdullah Mashraqi
- Biology Department, College of Science, Jazan University, Jazan 82817, Saudi Arabia
| | - Yosra Modafer
- Biology Department, College of Science, Jazan University, Jazan 82817, Saudi Arabia
| | - Mohamed A Al Abboud
- Biology Department, College of Science, Jazan University, Jazan 82817, Saudi Arabia
| | - Hanaa M Salama
- Department of Chemistry, Faculty of Science, Port Said University, Port Said 42521, Egypt
| | - Emad Abada
- Biology Department, College of Science, Jazan University, Jazan 82817, Saudi Arabia
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Amin BH, Abou‐Dobara MI, Diab MA, Gomaa EA, El‐Mogazy MA, El‐Sonbati AZ, EL‐Ghareib MS, Hussien MA, Salama HM. Synthesis, characterization, and biological investigation of new mixed‐ligand complexes. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5689] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Basma H. Amin
- The Regional Center for Mycology and Biotechnology (RCMB) Al‐Azhar University Cairo Egypt
| | - Mohamed I. Abou‐Dobara
- Botany and Microbiology Department, Faculty of Science Damietta University Damietta Egypt
| | - Mostafa A. Diab
- Chemistry Department, Faculty of Science Damietta University Damietta Egypt
| | - Essam A. Gomaa
- Chemistry Department, Faculty of Science Mansoura University Mansoura 35516 Egypt
| | | | - Adel Z. El‐Sonbati
- Chemistry Department, Faculty of Science Damietta University Damietta Egypt
| | | | - Mostafa A. Hussien
- Department of Chemistry, Faculty of Science King Abdul‐Aziz University PO Box 80203 Jeddah 21589 Saudi Arabia
| | - Hanaa M. Salama
- Chemistry Department, Faculty of Science Port Said University Port Said Egypt
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Abstract
PURPOSE We studied the sonographic appearances of hepatic hydatid cysts and used sonography to follow up these cysts after sonographically guided aspiration using the PAIR technique. METHODS Included in this study were 362 patients with 558 hepatic hydatid cysts. Initial sonographic examination revealed 510 noncomposite cysts and 48 composite cysts (18 rosette and 30 honeycomb pattern). Noncomposite hydatid cysts (510 cysts) were aspirated and treated with scolicidal agents using the PAIR technique. Sonographic follow-up was done for up to 5 years after aspiration. RESULTS There was immediate detachment of the germinal layer in all cysts during aspiration. There were no serious complications. Sonographic follow-up after 1 month and 1 year revealed complete cyst collapse in 326 cysts (64%) and 449 cysts (88%), respectively. Repeat ultrasound scanning showed a continued decrease in the sizes of all remaining cysts. Organized lesions (pseudosolid pattern) were detected in only 26 cases after up to 5 years of follow-up. CONCLUSIONS The most common sonographic appearance of hepatic hydatid cysts among Egyptians is noncomposite, anechoic cysts. The PAIR technique is a safe, effective, and inexpensive therapeutic modality.
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Affiliation(s)
- H M Salama
- Tropical Medicine Department, Faculty of Medicine, Cairo University, Kasr El Aini, Egypt
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Salama HM, Abdel-Wahab MF, Farid Z. Hepatobiliary disorders presenting as fever of unknown origin in Cairo, Egypt: the role of diagnostic ultrasonography. J Trop Med Hyg 1988; 91:147-9. [PMID: 3292787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Among 130 patients with fever of unknown origin (FUO) studied from 1981 to 1985, 34 were diagnosed as having hepatobiliary disorders: amoebic liver abscess (11), pyogenic liver abscess (4), hepatic hydatid cysts (2), hepatic fascioliasis (2), tuberculous hepatic granulomas (1), chronic calcular cholecystitis with recurrent cholangitis (2), chronic active hepatitis (2), hepatocellular carcinoma (3), lymphoma involving the liver (4) and hepatic metastasis in (3) cases. Hepatobiliary disorders were the cause in 27% of FUO seen during 4 years.
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Affiliation(s)
- H M Salama
- Kasr El Aini Faculty of Medicine, Cairo University, Egypt
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Eshba NH, Salama HM, Labouta IM, Omar AM. Synthesis of some substituted-1,2,4-triazino[5,6-b]indole derivatives as potential antiviral and anticancer agents. Pharmazie 1987; 42:664-6. [PMID: 3438319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- N H Eshba
- Pharmaceutical Chemistry Department, Faculty of Pharmacy University of Alexandria, A.R.E
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Rida SM, Labouta IM, Salama HM, Ghany YS, el-Ghazzaui E, Kader O. Syntheses and in vitro antimicrobial evaluation of some benzimidazol-2-ylmethylthioureas, benzimidazol-2-ylacetylthiosemicarbazides and products of their condensation with monochloroacetic acid. Pharmazie 1986; 41:475-8. [PMID: 3095853 DOI: 10.1002/chin.198652177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
N-Benzimidazol-2-ylacetyl-N'-[alkyl- and arylthio (carbamoyl)]hydrazines and N-benzimidazol-2-ylmethyl-N'-alkyl- and -arylthioureas were subjected to condensation with monochloroacetic acid to afford N-benzimidazol-2-ylacetyl-N'-2,3, 4,5-tetrahydro-4-oxo-3-alkyl- and -arylthiazol-2-ylidenehydrazines and 3-benzimidazol-2-ylmethyl-2-alkyl- and arylimino-2,3-dihydrothiazol-4-(5H)ones, respectively. In preliminary antimicrobial testing, some compounds turned out to have significant activity against Staphylococcus aureus.
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Rida SM, Salama HM, Labouta IM, Ghany YS. Syntheses and in vitro antimicrobial activities of thiazolo-[3,2-a]benzimidazol-3(2H)-ones. Pharmazie 1986; 41:324-6. [PMID: 3737661 DOI: 10.1002/chin.198640178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Taking advantage of the nucleophilic reactivity of the 2-methylene carbon atom in thiazolo[3,2-a]-benzimidazol-3(2H)-one, a number of 2-isatinylidene and 2-arylazo derivatives have been prepared. The novel compounds were subjected to antimicrobial testing.
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Rida SM, Salama HM, Labouta IM, A-Ghany YS. Synthesis of some 3-(benzimidazol-2-ylmethyl)thiazolidinone derivatives as potential antimicrobial agents. Pharmazie 1985; 40:727-8. [PMID: 4080789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Eshba NH, Salama HM. 5-(2-Oxo-3-indolinylidene)thiazolidine-2,4-dione-1,3-di-Mannich base derivatives: synthesis and evaluation for antileukemic activity. Pharmazie 1985; 40:320-2. [PMID: 4034634 DOI: 10.1002/chin.198537199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel series of 5-(2-oxo-3-indolinylidene)thiazolidine-2,4-dione, having the 1- and 3-positions of the isatin and thiazolidine rings respectively, substituted by various Mannich bases, was prepared. Five compounds were evaluated for antileukemic activity against P388 lymphocytic leukemia in the mouse. The di-Mannich base with a dimethylamino component exhibited the highest activity of the tested compounds. Introduction of bromine into the aromatic moiety of isatin ring (position 5) increased the activity of the parent molecule to a smaller extent.
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Salama HM, Eshba NH. Novel bis(5-arylamino-2-oxo-4-thiazolidinylidene)hydrazine derivatives as potential antineoplastic agents. Pharmazie 1985; 40:174-6. [PMID: 4023032 DOI: 10.1002/chin.198535187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A new series of N,N'-bis(5-arylamino-3-benzyl-2-oxo-4-thiazolidinylidene)hydrazine s has been prepared for potential anticancer activity. The synthesis was achieved by reacting 3-benzylthiazolidin-2-one-4-thione with its 4-hydrazone derivative to give N,N'-bis(3-benzyl-2-oxo-4-thiazolidinylidene)hydrazine, which was subjected to dibromination followed by reaction with various primary aromatic amines. Some compounds were evaluated against leukemia P 388 in the mouse. No significant antitumor activity was observed.
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Mohsen A, Omar ME, Salama HM, Eshba NH. Novel thiazolidine-2,4-dione-4-thiosemicarbazone and 4-[(3,4-diaryl-3H-thiazol-2-yl)azo]thiazolidin-2-one derivatives: synthesis and evaluation for antimicrobial and anticancer properties. Farmaco Sci 1985; 40:49-57. [PMID: 3884369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two novel series of 3-benzylthiazolidine-2,4-dione-4-thiosemicarbazones (V - IX) and 3-benzyl-4-[(3,4-diaryl-3H-thiazol-2-yl)azo]thiazolidin-2-on es (X - XXII) were synthesized as potential antimicrobial and anticancer agents. The products were found to be inactive against a variety of microorganisms and the preliminary antileukemic evaluation of some representative compounds against P 388 lymphocytic leukemia indicated insignificant activity.
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Omar AM, Eshba NH, Salama HM. Syntheses of some substituted isatin-beta-thiosemicarbazones and isatin-beta-hydrazonothiazoline derivatives as potential antiviral and antimicrobial agents. Arch Pharm (Weinheim) 1984; 317:701-9. [PMID: 6497599 DOI: 10.1002/ardp.19843170810] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Soliman FS, Salama HM. Novel indolene-spiro-hydroxytetronimides as potential antineoplastic and antiviral agents. Pharmazie 1983; 38:585-6. [PMID: 6647529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In a continuing search for new antineoplastic and antiviral agents, the preparation of some substituted indol-2(3H)-one-3-spiro-2'-3',4'-dihydroxy-5'-imino-2',5'-dihydrofurans was designed. The synthesis was achieved by reacting isatin, 1-alkyl- or 1-aralkylisatin derivative with glyoxal sodium bisulfite and potassium cyanide. However, when 1-substituted aminomethyl derivatives of isatin or of 5-bromoisatin were used in this reaction, the indolone-spiro-hydroxytetronimide unsubstituted at position 1 was, unexpectedly, the only product isolated. Two compounds were tested against P-388 lymphocytic leukemia in mice and were inactive.
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Salama HM, Vladzimirska HV, Turkevich NM, Stebljuk PN. Synthesis and antimicrobial action of some bis-thiazolidines. Pharmazie 1979; 34:720-1. [PMID: 397491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
alpha, delta-Bis(thiazolidinidione-2,4-hydrazone-4-yl-3)butane (1) was reacted with heterocyclic and aromatic aldehydes in boiling glacial acetic acid, where the corresponding analogs of alpha, delta-bis (thiazolidindione-2,4-N-arylidenehydrazone-4-yl-3)butane (2) were separated. While with some other heterocyclic and aromatic aldehydes, and under the same conditions, the corresponding analogs of alpha, delta-bis(thiazolidinidione-2,4-N-arylidenehydrazone-4-arylidene-5-yl-3) butane (3) were obtained. The synthesized compounds exhibit antimicrobial activity.
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Ibrahim ES, Farghaly AM, Salama HM. Synthesis of some dibenzazepines of possible therapeutic interest. Pharmazie 1977; 32:329-31. [PMID: 896935 DOI: 10.1002/chin.197749269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Among the hypotensive drugs are the N-alkyldibenz[c,e]-azepines. A representative of this class is 6-allyl-6,7-dihydro-5H-dibenz[c,e]azepine (azapetine). The present investigation involved the preparation of a new series of N-[6,7-dihydro-5H-dibenz[c,e]azepin-6-yl] acid amides namely; acetamide, benzamide, phehyl acetamide, salicylamide and p-hydroxybenzamide derivatives. Another new series of N-[6,7-dihydro-5H-dibenz[c,e]azepin-6-yl]-N-alkyl (or aryl) thioureas was prepared namely ethyl, isopropyl, butyl, cyclohexyl, benzyl, phenyl and o-tolyl thiourea derivatives. IR spectra of the two series of compounds were investigated.
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