Medicinal Chemistry Research

, Volume 24, Issue 9, pp 3516–3528 | Cite as

Design, synthesis and anticancer activity of functionalized spiro-quinolines with barbituric and thiobarbituric acids

  • Ravi Kiran Bhaskarachar
  • Vijayakumar G. RevanasiddappaEmail author
  • Subramanya Hegde
  • Janardhana P. Balakrishna
  • Suman Y. Reddy
Original Research


A new series of spiro-quinoline compounds have been accomplished by the reaction of barbituric acid or thiobarbituric acid with derivatives of benzisoxazole-5-carbaldehyde or 2-substituted benzaldehyde. These compounds were evaluated for their in vitro cytotoxicity on two mammalian cancer cell lines MCF-7 and KB. The compounds exhibit cytotoxicity against these cell lines in micromolar range. Among the series of compounds, 11(aj) particularly 11b and 11e showed relatively good activity against both the tested cell lines. Compound 11b was found to exhibit the highest cytotoxic activity with IC50 value 90.2 µM for MCF-7 and 49.8 µM for KB cell line. Flow cytometric analysis study confirmed that these molecules induced cytotoxicity via apoptosis.


Spiro-quinoline Barbituric acid Benzisoxazole [1–5] Shift MTT assay Flow cytometry 



Authors show deep sense of gratitude to Department of Science and Technology (SERB), New Delhi, India, for their financial assistance (SR/FT/CS-145/2010) to the present work. Authors GRV and BR thank Tumkur University administration for their support and encouragement.

Conflict of interest


Supplementary material

44_2015_1408_MOESM1_ESM.doc (4.7 mb)
Supplementary material 1 (DOC 4784 kb)


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Ravi Kiran Bhaskarachar
    • 1
  • Vijayakumar G. Revanasiddappa
    • 1
    Email author
  • Subramanya Hegde
    • 2
  • Janardhana P. Balakrishna
    • 3
  • Suman Y. Reddy
    • 4
  1. 1.Department of Chemistry, UCSTumkur UniversityTumakuruIndia
  2. 2.Department of ChemistryGovernment Science CollegeBangaloreIndia
  3. 3.Stellixir Biotech Pvt Ltd.BangaloreIndia
  4. 4.Department of ChemistryIndian Institute of TechnologyKanpurIndia

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