82950-68-3

Upstream product

• 593-31-7 rac-1-(Z-9-octadecenyl)glycerol 
• 76-83-5 trityl chloride 
• 35709-09-2 oleyl methanesulfonate 
• 22610-35-1 1-O-cis-9-octadecenyl isopropylideneglycerol 
• 143-28-2 oleoyl alcohol 
• 593-31-7 1-O-(Z)-9'-octadecenyl-sn-glycerol 
• 6110-54-9 oleyl p-toluenesulfonate 

Downstream Products

• 86299-21-0 1-O-oleyl-2-O-methyl-3-O-trityl glycerol 
• 6076-41-1 2,3-bis[(Z)-octadec-9-enyloxy]propanol 

Relevant academic research and scientific papers

Sterol-modified phospholipids: Cholesterol and phospholipid chimeras with improved biomembrane properties

We synthesized a family of sterol-modified glycerophospholipids (SML) in which the sn-1 or sn-2 position is covalently attached to cholesterol and the alternative position contains an aliphatic chain. The SML were used to explore how anchoring cholesterol to a phospholipid affects cholesterol behavior in a bilayer. Notably, cholesterol in the SML retains the membrane condensing properties of free cholesterol regardless of the chemistry or position of its attachment to the glycerol moiety of the phospholipid. SMLs by themselves formed liposomes upon hydration and in mixtures between an SML and diacylglycerophospholipids (C14 to C18 chain length) the thermotropic phase transition is eliminated at the SML equivalent of about 30 mol % free cholesterol. Osmotic-induced contents leakage from SML (C14-C18) liposomes depends upon the linkage and position of cholesterol but in general is similar to that observed in 3/2 diacylphosphatidylcholine/cholesterol (mole ratio) liposomes. SML liposomes are exceptionally resistant to contents release in the presence of serum at 37°C. This is probably due to the fact that SML exchange between bilayers is more than 100 fold less than the exchange rate of free cholesterol in the same conditions. Importantly, SML liposomes containing doxorubicin are as effective in treating the murine C26 colon carcinoma as Doxil, a commercial liposome doxorubicin formulation. SMLs stabilize bilayers but do not exchange and hence provide a new tool for biophysical studies on membranes. They may improve liposomal drug delivery in organs predisposed to the extraction of free cholesterol from bilayers, such as the skin, lung, or blood.

Compositions containing lysophosphatidic acids which inhibit apoptosis and uses thereof

The invention provides anti-apoptotic compositions lysophosphatidic acids and methods for making and using the compositions. Such compositions can also contain LPA potentiating agents, including proteins, lipid membrane structures and polymers such as polyethylene glycols. The compositions can additionally contain other pharmaceutically effective agents such as drugs, antibiotics, wound healing agents and antioxidants.

Synthesis of 1-O-alkyl-2-O-methyl-glycerophospholipids with potential antitumor activity

Some synthetic alkyl-lysophospholipid analogs have been described as a new class of immunopotentiating and antitumor agents. Among them, 1-O-octadecyl-2-O-methyl-rac-glycero-3-phosphocholine has been reported to possess the highest antitumor activity. A new method for the synthesis of this compound and of the ethanolamine- and serine-containing analog is reported. 1-Alkyl-2-methyl-rac-glycerol, prepared from 1,2-isopropylidene-glycerol, is phosphorylated and the intermediate is condensed either with N-t-BOC-protected ethanolamine or with N-t-BOC-protected serine benzhydryl ester. The choline-derivative is obtained by methylation with CH3I of the ethanolamine derivative. The same synthetic sequence has been used also for synthesizing compounds unsaturated at the fatty alkyl chain in position 1 of the glycerol moiety. Preliminary observation are reported on the selective cytolytic action of the compounds on a tumor cell line.