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http://nopr.niscpr.res.in/handle/123456789/21677| Title: | Synthesis of novel tricyclic heterocyclic compounds as potential anticancer agents using chromanone and thiochromanone as synthons |
| Authors: | Hammam, Abou El-Fotooh G Fahmy, A F M Amr, Abdel-Galil E Mohamed, Ashraf M |
| Issue Date: | Aug-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The arylmethylene of benzopyrane or benzothiopyrane 3,4 have been synthesized and condensed with hydrazine, guanidine and thiourea to yield pyrazole 5-8, aminopyrimidine 9,10 and thioxopyrimidine derivatives 11,12, respectively. Compounds 3 or 4 on treatment with malononitrile in the presence of ammonium acetate/acetic acid or in the presence of piperidine/ methanol to yield benzopyrano-and benzothiopyranopyridine 13,14 and benzopyrano- and benzothiopyrane 15,16, respectively. The oxirane of compound 3 is prepared and condensed with CS2 to yield the tricyclic system, thioxothienobenzopyrane 21. Ylidenemalononitrile for the ketone 1 and 2 are synthesized and condensed with aromatic aldehyde in presence of ammonium acetate/acetic acid to yield benzopyranopyridine and benzothiopyranopyridine derivatives 24,25, respectively, which are the isomer of compounds 13,14. Ylidenemalononitrilc on condensation with phenylisothiocyanate yields benzo-pyrano- and benzothiopyranothioxopyridine 28,29, respectively. |
| Page(s): | 1985-1993 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.42B(08) [August 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 42B(8) 1985-1993.pdf | 1.99 MB | Adobe PDF | View/Open |
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