Medicinal Chemistry Research

, Volume 27, Issue 2, pp 420–428 | Cite as

QSAR studies of indoyl aryl sulfides and sulfones as reverse transcriptase inhibitors

  • Pablo R. DuchowiczEmail author
  • Daniel E. BaceloEmail author
  • Silvina E. Fioressi
  • Valeria Palermo
  • Nnenna E. Ibezim
  • Gustavo P. Romanelli
Original Research


The inhibitory HIV reverse transcriptase activity of 172 non-nucleoside indoyl aryl sulfones and sulfides is studied with a QSAR analysis, in order to identify the molecular characteristics influencing the interaction with the reverse transcriptase enzyme. This work increases the available QSAR studies of indoyl aryl sulfones and sulfides using the reported experimental EC50 values against HIV-1 wild type (IIIB) in human T-lymphocyte (CEM) cells. Different approaches are proposed, involving 0D, 1D and 2D molecular descriptors from PaDEL freeware, and also based on flexible descriptors from CORAL freeware. Three models are finally presented, which correlate the inhibitory HIV reverse transcriptase activity with good accuracy. It is demonstrated that the established models are predictive in the validation process. The novelty of the present work relies on the development of structure-inhibitory HIV activity relationships, through a computational technique that does not require the knowledge of the molecular conformation during the structural representation. The obtained results would contribute to guide the design of more effective compounds for HIV treatment.


Indoyl aryl sulfides and sulfones HIV reverse transcriptase inhibitors QSAR PaDEL CORAL 



PRD acknowledges the financial support from the National Research Council of Argentina (CONICET) PIP11220130100311 project and to Ministerio de Ciencia, Tecnología e Innovación Productiva for the electronic library facilities. The authors are members of the scientific researcher career of the National Research Council of Argentina (CONICET).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

Supplementary material

44_2017_2069_MOESM1_ESM.docx (577 kb)
Supplementary Materials


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Pablo R. Duchowicz
    • 1
    Email author
  • Daniel E. Bacelo
    • 2
    Email author
  • Silvina E. Fioressi
    • 2
  • Valeria Palermo
    • 3
  • Nnenna E. Ibezim
    • 4
  • Gustavo P. Romanelli
    • 3
    • 5
  1. 1.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)CONICET, UNLPLa PlataArgentina
  2. 2.Departamento de Química, Facultad de Ciencias Exactas y NaturalesUniversidad de BelgranoBuenos AiresArgentina
  3. 3.Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr. J.J. Ronco” (CINDECA), Departamento de Química, Facultad de Ciencias ExactasCONICET, UNLPLa PlataArgentina
  4. 4.Department of Computer EducationUniversity of NigeriaNsukkaNigeria
  5. 5.Cátedra de Química Orgánica, Centro de Investigación en Sanidad Vegetal (CISaV), Facultad de Ciencias Agrarias y ForestalesUniversidad Nacional de La PlataLa PlataArgentina

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