24613-61-4Relevant academic research and scientific papers
The oxorhenium(VII)-catalyzed direct condensation of phosphoric acid with an alcohol
Sakakura, Akira,Katsukawa, Mikimoto,Ishihara, Kazuaki
, p. 1423 - 1426 (2007)
(Chemical Equation Presented) Come together ... over Re: Oxorhenium-(VII) complexes catalyze the direct condensation of phosphoric acid with an alcohol to selectively give the corresponding phosphoric acid monoester on a 2-100-mmol scale (see scheme). This method should be useful for the industrially important synthesis of phosphoric acid monoesters.
Synthesis, structure-activity relationships, and biological evaluation of fatty alcohol phosphates as lysophosphatidic acid receptor ligands, activators of PPARγ, and inhibitors of autotaxin
Durgam, Gangadhar G.,Virag, Tamas,Walker, Michelle D.,Tsukahara, Ryoko,Yasuda, Satoshi,Liliom, Karoly,Van Meeteren, Laurens A.,Moolenaar, Wouter H.,Wilke, Nicole,Siess, Wolfgang,Tigyi, Gabor,Miller, Duane D.
, p. 4919 - 4930 (2005)
We previously reported that fatty alcohol phosphates (FAP) represent a minimal pharmacophore required to interact with lysophosphatidic acid (LPA) receptors. To improve the activity of the first-generation saturated FAP series, a structure-activity relationship (SAR) study was carried out that includes modifications to the headgroup and alkyl side chain of the FAP pharmacophore. A series of unsaturated (C10-C18) FAP, headgroup-modified hydrolytically stable saturated (C10-C18) alkyl phosphonates, and saturated and unsaturated (C10-C18) thiophosphate analogues were synthesized and evaluated for activity in RH7777 cells transfected with individual LPA1-3 receptors, in PC-3 cells and in human platelets that endogenously express all three isoforms. In this series we identified several LPA1- and LPA3-selective antagonists with IC50 values in the nanomolar range. Oleoyl-thiophosphate (15g) was shown to be a panagonist, whereas tetradecyl-phosphonate (16c) was identified as a pan-antagonist. These compounds were also tested for the ability to activate the transcription factor PPARγ, an intracellular receptor for LPA, in CV1 cells transfected with the PPRE-Acox-Rluc reporter gene. All the FAP tested, along with the previously reported LPA GPCR antagonists dioctanoyl glycerol pyrophosphate (2), Ki16425 (6), and the agonist OMPT (3), were activators of PPARγ. The pan-agonist oleoyl-thiophosphate (15g) and pan-antagonist tetradecyl-phosphonate (16c) mimicked LPA in inhibiting autotaxin, a secreted lysophospholipase D that produces LPA in biological fluids.
Selective synthesis of phosphate monoesters by dehydrative condensation of phosphoric acid and alcohols promoted by nucleophilic bases
Sakakura, Akira,Katsukawa, Mikimoto,Ishihara, Kazuaki
, p. 1999 - 2002 (2007/10/03)
(Chemical Equation Presented) Phosphate monoesters are synthesized from a mixture of phosphoric acid (1 or 2 equiv) and alcohols (1 equiv) in the presence of tributylamine. The reaction is promoted by nucleophilic bases such as N-alkylimidazole and 4-(N,N-dialkylamino)pyridine. 2′,3′-I- Isopropylidene ribonucleosides are selectively converted to their 5′-monophosphates without the protection of amino groups in nucleobases.
LPA RECEPTOR AGONISTS AND ANTAGONISTS AND METHODS OF USE
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Page/Page column 37-38, (2008/06/13)
The present invention relates to compounds according to formula (I) as disclosed herein as well as pharmaceutical compositions which include those compounds. Also disclosed are methods of using such compounds, which have activity as agonists or as antagonists of LPA receptors; such methods including inhibiting LPA activity on an LPA receptor, modulating LPA receptor activity, treating cancer, enhancing cell proliferation, treating a wound, treating apoptosis or preserving or restoring function in a cell, tissue, or ogan, culturing cells, preserving organ or tissue function, and treating a dermatological condition.
