6-[1-(2,6-Difluorophenyl)ethyl]pyrimidinones Antagonize Cell Proliferation and Induce Cell Differentiation by Inhibiting (a Nontelomeric) Endogenous Reverse Transcriptase
transcriptase (endo-RT) in human differentiating cell systems to investigate their antiproliferative and cytodifferentiating activity. The two compounds significantly reduced cell proliferation and facilitated the morphological differentiation of cells. These results propose F(2)-DABOs as useful tools in preventive and/or curative therapy to counteract the loss of differentiation in dedifferentiating pathologies
Facile synthesis of the NNRTI microbicide MC-1220 and synthesis of its phosphoramidate prodrugs
作者:Yasser M. Loksha、Erik B. Pedersen、Paolo La Colla、Roberta Loddo
DOI:10.1039/c5ob02055g
日期:——
A facile and novelsyntheticroute to MC-1220 was achieved by condensation of 4,6-dichloro-N,N-5-trimethylpyrimidin-2-amine (1) with the sodium salt of 2,6-difluorophenylacetonitrile, followed by methylation and strong acidic hydrolysis. The prodrugs of MC-1220 were synthesized by reaction of chlorophosphoramidate derivatives (7a–e) or α-acetobromoglucose with the sodium salt of MC-1220. The stability
A Novel Synthetic Route for the Anti-HIV Drug MC-1220 and its Analogues
作者:Yasser M. Loksha、Daniel Globisch、Roberta Loddo、Gabriella Collu、Paolo La Colla、Erik B. Pedersen
DOI:10.1002/cmdc.201000244
日期:2010.11.8
Easy street: Herein we describe a novel and practical synthesis of the anti‐HIV compound MC‐1220. Through the use of inexpensive reagents and commercially available starting materials, MC‐1220 and itsanalogues are more easily accessed by a four‐step procedure involving a key reduction step.
Synthesis and Biological Properties of Novel 2-Aminopyrimidin-4(3<i>H</i>)-ones Highly Potent against HIV-1 Mutant Strains
作者:Antonello Mai、Marino Artico、Dante Rotili、Domenico Tarantino、Imma Clotet-Codina、Mercedes Armand-Ugón、Rino Ragno、Silvia Simeoni、Gianluca Sbardella、Maxim B. Nawrozkij、Alberta Samuele、Giovanni Maga、José A. Esté
DOI:10.1021/jm070811e
日期:2007.11.1
Following the disclosure of dihydro-alkoxy-, dihydro-alkylthio-, and dihydro-alkylamino-benzyl-oxopyrimidines (DABOs, S-DABOs, and NH-DABOs) as potent and selective anti-HIV-1 agents belonging to the non-nucleoside reverse transcriptase inhibitor (NNRTI) class, we report here the synthesis and biological evaluation of a novel series of DABOs bearing a NN-disubstituted amino group or a cyclic amine at the pyrimidine-C, position, a hydrogen atom or a small alkyl group at C-5 and/or at the benzylic position, and the favorable 2,6-difluorobenzyl moiety at the C-6 position (F,NN-DABOs). The new compounds were highly active up to the subnanomolar level against both wt HIV-1 and the Y181C mutant and at the submicromolar to nanomolar range against the K103N and Y188L mutant strains. Such derivatives were more potent than S-DABOs, NH-DABOs, and nevirapine and efavirenz were chosen as reference drugs. The higher inhibitor adaptability to the HIV- I RT non-nucleoside binding site (NNBS) may account for the higher inhibitory effect exerted by the new molecules against the mutated RTs.