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4 Results Found

  • Article
  • Open Access
4 Citations
2,873 Views
27 Pages

Fiscalin Derivatives as Potential Neuroprotective Agents

  • Sandra Barreiro,
  • Bárbara Silva,
  • Solida Long,
  • Madalena Pinto,
  • Fernando Remião,
  • Emília Sousa and
  • Renata Silva

Neurodegenerative diseases (ND) share common molecular/cellular mechanisms that contribute to their progression and pathogenesis. In this sense, we are here proposing new neuroprotection strategies by using marine-derived compounds as fiscalins. This...

  • Article
  • Open Access
23 Citations
5,605 Views
17 Pages

Synthesis of New Proteomimetic Quinazolinone Alkaloids and Evaluation of Their Neuroprotective and Antitumor Effects

  • Solida Long,
  • Diana I. S. P. Resende,
  • Anake Kijjoa,
  • Artur M. S. Silva,
  • Ricardo Fernandes,
  • Cristina P. R. Xavier,
  • M. Helena Vasconcelos,
  • Emília Sousa and
  • Madalena M. M. Pinto

1 February 2019

New quinazolinone derivatives of the marine-derived alkaloids fiscalin B (3) and fumiquinazoline G (1), with neuroprotective and antitumor effects, were synthesized. Eleven quinazolinone-containing indole alkaloids were synthesized, proceeding the an...

  • Article
  • Open Access
43 Citations
7,587 Views
18 Pages

Antitumor Activity of Quinazolinone Alkaloids Inspired by Marine Natural Products

  • Solida Long,
  • Diana I. S. P. Resende,
  • Anake Kijjoa,
  • Artur M. S. Silva,
  • André Pina,
  • Tamara Fernández-Marcelo,
  • M. Helena Vasconcelos,
  • Emília Sousa and
  • Madalena M. M. Pinto

31 July 2018

Many fungal quinazolinone metabolites, which contain the methyl-indole pyrazino [1,2-b]quinazoline-3,6-dione core, have been found to possess promising antitumor activity. The purpose of this work was to synthesize the enantiomeric pairs of two membe...

  • Article
  • Open Access
3 Citations
3,992 Views
12 Pages

Determination of the Absolute Configuration of Bioactive Indole-Containing Pyrazino[2,1-b]quinazoline-3,6-diones and Study of Their In Vitro Metabolic Profile

  • Solida Long,
  • Izadora L. Furlani,
  • Juliana M. de Oliveira,
  • Diana I. S. P. Resende,
  • Artur M. S. Silva,
  • Luís Gales,
  • José A. Pereira,
  • Anake Kijjoa,
  • Quezia B. Cass and
  • Madalena M. M. Pinto
  • + 2 authors

21 August 2021

In recent decades, fungi-derived naturally occurring quinazolines have emerged as potential drug candidates. Nevertheless, most studies are conducted for bioactivity assays, and little is known about their absorption, distribution, metabolism, and el...