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Synthesis and Anti-Monoamine Oxidase and Antitumor Properties of Novel 3H-Spiro[Benzo[H] Quinazoline-5,1′-Cyclohexane]-4(6H)-One Derivatives

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Pharmaceutical Chemistry Journal Aims and scope

Amides that cyclized into 2-substituted 3H-spiro[benzo(h)quinazoline-5,1′-cyclohexane]-4(6H)-ones were prepared by reaction of 4′-amino-1′H-spiro[cyclohexane-1,2′-naphthalene]-3′-nitrile with carboxylic acid chlorides. Substitution of the benzoquinazolines by alcoholates, secondary amines, and thiolates was investigated. Thus,2-(3-chloropropyl)-3H-spiro[benzo[h]quinazoline-5,1′-cyclohexane]-4(6H)-one underwent intramolecular cyclization to form 10,11-dihydro-5H-spiro[benzo[h]pyrrolo[2,1-b]quinazoline-6,1′-cyclohexane]- 7(9H)-one whereas 2-chloromethyl-3H-spiro[benzo[h]quinazoline-5,1′-cyclohexane]-4(6H)-one formed substitution products. The influence of the synthesized compounds on brain monoamine oxidase activity was studied in vitro. It was found that the majority of the compounds inhibited deamination of 5-HT. The antitumor activity of the compounds was studied using two grafted murine tumor models, i.e., Ehrlich ascites carcinoma and sarcoma 180. Some of the investigated compounds suppressed tumor growth by 50 – 56%.

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Authors and Affiliations

  1. Mndzhoyan Institute of Fine Organic Chemistry, Scientific and Technological Center of Organic and Pharmaceutical Chemistry, National Academy of Sciences of Armenia, 26 Azatutyan Pr., 0014, Yerevan, 375014, Armenia

    A. I. Markosyan, S. A. Gabrielyan, F. G. Arsenyan & R. S. Sukasyan

Authors
  1. A. I. Markosyan
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  2. S. A. Gabrielyan
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  3. F. G. Arsenyan
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  4. R. S. Sukasyan
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Correspondence to A. I. Markosyan.

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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 48, No. 6, pp. 14 – 18, June, 2014.

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Markosyan, A.I., Gabrielyan, S.A., Arsenyan, F.G. et al. Synthesis and Anti-Monoamine Oxidase and Antitumor Properties of Novel 3H-Spiro[Benzo[H] Quinazoline-5,1′-Cyclohexane]-4(6H)-One Derivatives. Pharm Chem J 48, 368–372 (2014). https://doi.org/10.1007/s11094-014-1112-9

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  • DOI: https://doi.org/10.1007/s11094-014-1112-9

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