- Synthesis and anticancer activity of novel quinazolinone and benzamide derivatives
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In trying to develop new anticancer agents, a series of quinazolinone and benzamide derivatives were synthesized via reaction of 6-iodo-2-phenyl-4H-benzoxazin-4-one with nitrogen nucleophiles, namely, formamide, ammonium acetate, hydrazine hydrate, hydroxylamine hydrochloride, substituted aromatic amines, benzyl amine, and/or thiocarbonohydrazide. All compounds were fully characterized by means of IR, MS, and 1H-NMR spectra. Some of the synthesized compounds were evaluated in vitro for their anti-proliferative activity against HePG-2 and MCF-7 cell lines. 2-(Benzoylamino)-N-(4-hydroxyphenyl)-5-iodobenzamide and tetrazino[1,6-c]quinazoline-3(4H)-thione derivative were the most potent against the two cancer cells comparable to that of doxorubicin. Most of the synthesized compounds also exhibited good cytotoxic activity.
- El-Hashash, Maher Abd El-Aziz Mahmoud,Salem, Marwa Sayed,Al-Mabrook, Selima Ali Mohamed
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- Mechanochemical Synthesis of Substituted 4H-3,1-Benzoxazin-4-ones, 2-Aminobenzoxazin-4-ones, and 2-Amino-4H-3,1-benzothiazin-4-ones Mediated by 2,4,6-Trichloro-1,3,5-triazine and Triphenylphosphine
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A mild and convenient approach for the synthesis of 2-substituted 4H-3,1-benzoxazin-4-ones, 2-aminobenzoxazin-4-ones, and 2-amino-4H-3,1-benzothiazin-4-ones under solvent-assisted grinding is reported. In the presence of 2,4,6-trichloro-1,3,5-triazine and
- Pattarawarapan, Mookda,Wet-Osot, Sirawit,Yamano, Dolnapa,Phakhodee, Wong
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p. 589 - 592
(2017/03/11)
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- Design and synthesis of quinazolinone tagged acridones as cytotoxic agents and their effects on EGFR tyrosine kinase
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In a quest for finding potent cytotoxic molecules, we have designed and synthesized a new scaffold by tagging quinazolinones with an acridone moiety. The new acridone-4-carboximide derivatives were evaluated for their cytotoxic potentials against the MCF7 breast cancer cell line and three colon cancer cell lines (LS174T, SW1398, and WiDr). Compound 26 showed relatively potent cytotoxic activity among the derivatives, against all the cell lines tested. Mechanistic studies for the selected derivatives 7, 8, 16, 17, 25, and 26 were conducted through in vitro EGFR tyrosine kinase inhibition studies. The results indicate that compound 26 has a better EGFR tyrosine kinase inhibitory profile. The in vitro EGFR inhibition data was correlated with the cytotoxic properties, and molecular docking studies were performed with regard to the receptor autophosphorylation sites of the protein kinase domain of the EGFR.
- Babu, Yarlagadda Rajesh,Bhagavanraju, Mantripragada,Reddy, Gade Deepak,Peters, Godefridus J.,Prasad, Velivela V. S. Rajendra
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p. 624 - 634
(2014/11/08)
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- Synthesis, analgesic and anti-inflammatory evaluation of some novel quinazoline derivatives
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Two series of some new 2,4,6-trisubstituted-quinazoline derivatives were prepared and screened for their analgesic, anti-inflammatory activity and acute toxicity. Four compounds were more potent analgesic agents than the reference drug Indomethacin and thirteen compounds showed significant anti-inflammatory activity. Seven compounds showed combined ability to inhibit both pain and inflammation. Compounds tested for acute toxicity showed no toxic symptoms or mortality rates 24 h post-administration implying their good safety margin.
- Alafeefy, Ahmed M.,Kadi, Adnan A.,Al-Deeb, Omar A.,El-Tahir, Kamal E.H.,Al-Jaber, Nabila A.
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scheme or table
p. 4947 - 4952
(2010/11/20)
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- Synthesis leading to novel 2,4,6-trisubstituted quinazoline derivatives, their antibacterial and cytotoxic activity against thp-1, hl-60 and a375 cell lines
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A series of novel 2,4,6-trisubstituted quinazoline derivatives 6 have been synthesized from anthranilic acids 1 in five steps via benzoxazinones 2, N-benzoyl benzamides 3, quinazol-4-ones 4, 4-chloroquinazolines 5. Products 6 have been screened for antibacterial and cytotoxic activity, promising compounds have been identified.
- Chandrika, P Mani,Yakaiah,Narsaiah,Sridhar,Venugopal,Rao, J Venkateshwara,Kumar, K Pranay,Murthy,Rao, A Raghu Ram
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scheme or table
p. 840 - 847
(2009/12/24)
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- Synthesis of novel 4,6-disubstituted quinazoline derivatives, their anti-inflammatory and anti-cancer activity (cytotoxic) against U937 leukemia cell lines
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In view of the link between use of NSAIDs and altered cancer incidence and a growing evidence of COX-II implication in angiogenesis, a novel series of 4,6-disubstituted quinazoline derivatives have been synthesized starting from anthranilic acid derivatives 1 through conventional methods. Initially acylation followed by cyclisation to obtain benz-oxazinones 2 which on further treatment with ammonia yielded the crucial intermediate, 2-substituted benzamide (3). The products were subsequently cyclised to obtain quinazolones 4, chlorinated 5, then hooked to various optically pure α-amino acids to have 4,6-disubstituted quinazoline derivatives 6. All the derivatives 6 are screened for anti-inflammatory and anti-cancer activity against U937 leukemia cell lines. Some of the compounds exhibited promising anti-cancer activity with reference to standard drug Etoposide.
- Chandrika, P. Mani,Yakaiah,Rao, A. Raghu Ram,Narsaiah,Reddy, N. Chakra,Sridhar,Rao, J. Venkateshwara
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p. 846 - 852
(2008/09/20)
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- Synthesis of benzimidazo[1,2-c]quinazolines as possible bronchodilators
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Synthesis of some 6-aryl-benzimidazo[1,2-c]quinazolines 4 have been critically investigated. The first method, based on the condensation of substituted-1,3-benzoxazin-4-(3H)-one 2 with o-phenylenediamine followed by cyclization of the resulting 2-aryl-3-(
- Rao, A. Raghu Ram,Bahekar, Rajesh H.
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p. 434 - 439
(2007/10/03)
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- Synthesis and Chemistry of some Novel 3-Heteroaryl-quinazolin-4-one Derivatives and their Antimicrobial Effects
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Some new heteroaryl-qainazolin-4-ones have been synthesised via the interaction of 3-amino-2-phenyl-6-iodoquinazolin-4-one with some oxo-compounds. Significant in vitro antimicrobial activities have been observed for some members of the series.
- Abdel-Hamide
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p. 619 - 623
(2007/10/03)
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