2. Academic Validation
  3. Synthesis and QSAR study of novel cytotoxic spiro[3H-indole-3,2'(1'H)-pyrrolo[3,4-c]pyrrole]-2,3',5'(1H,2'aH,4'H)-triones

Synthesis and QSAR study of novel cytotoxic spiro[3H-indole-3,2'(1'H)-pyrrolo[3,4-c]pyrrole]-2,3',5'(1H,2'aH,4'H)-triones

  • Eur J Med Chem. 2012 Jan;47(1):312-22. doi: 10.1016/j.ejmech.2011.10.058.
Adel S Girgis 1,  Jacek Stawinski,  Nasser S M Ismail,  Hanaa Farag
Affiliations

Affiliation

  • 1 Pesticide Chemistry Department, National Research Centre, Dokki, Cairo 12622, Egypt. girgisas10@yahoo.com
PMID: 22119131 DOI: 10.1016/j.ejmech.2011.10.058
Abstract

1,3-Dipolar cycloaddition reaction of 1-aryl-1H-pyrrole-2,5-diones 1a-e with non-stabilized azomethine ylides, generated in situ via decarboxylative condensation of isatins 2a-c and sarcosine (3) in refluxing ethanol, afforded 4'-aryl-5'a,6'-dihydro-1'-methyl-spiro[3H-indole-3,2'(1'H)-pyrrolo[3,4-c]pyrrole]-2,3',5'(1H,2'aH,4'H)-triones 4a-o in good yields. Compound 4l exhibited high anti-tumor activity against HEPG2 (liver Cancer) cell line (IC(50) = 12.16 μM) compared to that of Doxorubicin (IC(50) = 7.36 μM), and the Other synthesized compounds revealed moderate anti-tumor properties against HCT116 (colon), MCF7 (breast) and HEPG2 (liver) human tumor cell lines. 3D-Pharmacophore modeling and quantitative structure-activity relationship (QSAR) analysis were combined to explore the structural requirements controlling the observed anti-tumor properties. It was found that the major structural factors affecting potency of these compounds were related to their basic skeleton.

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