Synthesis and biological evaluation of functionalized coumarins as acetylcholinesterase inhibitors
摘要:
Three series of functionalized coumarin compounds were designed and prepared as cholinesterase (AChE and BuChE) inhibitors. The biological profile against AChE and BuChE of the prepared compounds was determined. Compound 7b exhibited a mixed-type of AChE inhibitor with IC50 value for the AChE inhibition of 0.19 +/- 0.01 mu M and a high selectivity for AChE/BuChE, and compound 6b acted as 0 non-competitive AChE inhibitor with IC50 value of 0.43 +/- 0.02 mu M. Structure-activity, relationships (SARs) of prepared compounds were discussed. (c) 2005 Elsevier SAS. All rights reserved.
This work explores the potential of the MARCH-INSIDE methodology to seek a QSAR for MAO-A inhibitors from a heterogeneous series of compounds. A Markov model was used to quickly calculate the molecular electron delocalization, polarizability, refractivity, and n-octanol/water partition coefficients for a series of 1406 active/nonactive compounds. LDA was subsequently used to fit a classification function. The model showed 92.8% and 91.8% global accuracy and predictability in training and validation studies. This QSAR model was validated through a virtual screening of a series of cournarin derivatives. The 15 selected compounds were prepared and evaluated as in vitro MAO-A inhibitors. The theoretical prediction was' compared with the experimental results and the model correctly predicted 13 compounds with only two mistakes on compounds with activities very close to the cutoff point established for the model. Consequently, this method represents a useful tool for the "in silico" screening of MAO-A inhibitors.
Kelkar, Shriniwas L.; Patil, Sharadbala D., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 1, p. 91 - 92
作者:Kelkar, Shriniwas L.、Patil, Sharadbala D.
DOI:——
日期:——
KELKAR, S. L.;PATIL, S. D., INDIAN J. CHEM., 1983, 22, N 1, 91-92
作者:KELKAR, S. L.、PATIL, S. D.
DOI:——
日期:——
Synthesis and biological evaluation of functionalized coumarins as acetylcholinesterase inhibitors
Three series of functionalized coumarin compounds were designed and prepared as cholinesterase (AChE and BuChE) inhibitors. The biological profile against AChE and BuChE of the prepared compounds was determined. Compound 7b exhibited a mixed-type of AChE inhibitor with IC50 value for the AChE inhibition of 0.19 +/- 0.01 mu M and a high selectivity for AChE/BuChE, and compound 6b acted as 0 non-competitive AChE inhibitor with IC50 value of 0.43 +/- 0.02 mu M. Structure-activity, relationships (SARs) of prepared compounds were discussed. (c) 2005 Elsevier SAS. All rights reserved.
Methylx derivatives of tetrahydrobenzo- and benzofurocoumarins, a new class of potential photoreagents toward dna
A number of new tetracyclic furocoumarin derivatives with a linear structure or with various angular arrangements, were synthetized. The new compounds are characterized for having an additional cyclohexene or phenyl ring condensed at the 4′,5′ double bond of the furan ring of the furocoumarin nucleus. The syntheses were performed starting from the appropriate hydroxycoumarins on which the tetrahydrobenzofuran