129247-67-2Relevant articles and documents
Non-naturally Occurring Regio Isomer of Lysophosphatidylserine Exhibits Potent Agonistic Activity toward G Protein-Coupled Receptors
Nakamura, Sho,Sayama, Misa,Uwamizu, Akiharu,Jung, Sejin,Ikubo, Masaya,Otani, Yuko,Kano, Kuniyuki,Omi, Jumpei,Inoue, Asuka,Aoki, Junken,Ohwada, Tomohiko
, p. 9990 - 10029 (2020/10/18)
Lysophosphatidylserine (LysoPS), an endogenous ligand of G protein-coupled receptors, consists of l-serine, glycerol, and fatty acid moieties connected by phosphodiester and ester linkages, respectively. An ester linkage of phosphatidylserine can be hydrolyzed at the 1-position or at the 2-position to give 2-acyl lysophospholipid or 1-acyl lysophospholipid, respectively. 2-Acyl lysophospholipid is in nonenzymatic equilibrium with 1-acyl lysophospholipid in vivo. On the other hand, 3-acyl lysophospholipid is not found, at least in mammals, raising the question of whether the reason for this might be that the 3-acyl isomer lacks the biological activities of the other isomers. Here, to test this idea, we designed and synthesized a series of new 3-acyl lysophospholipids. Structure-activity relationship studies of more than 100 "glycol surrogate"derivatives led to the identification of potent and selective agonists for LysoPS receptors GPR34 and P2Y10. Thus, the non-natural 3-acyl compounds are indeed active and appear to be biologically orthogonal with respect to the physiologically relevant 1-and 2-acyl lysophospholipids.
4,4'-Dimethoxytrityl and 4-Monomethoxytrityl Tetrafluoroborate: Convenient Reagents for the Protection of Primary Alcohols Including Sugars
Bleasdale, Christine,Ellwood, Simon B.,Golding, Bernard T.
, p. 803 - 805 (2007/10/02)
In a non-donor solvent (e.g. acetonitrile) and in the presence of 2,6-di-t-butyl-4-methylpyridine, the readily prepared 4-methoxytrityl tetrafluoroborate (3) and 4,4'-dimethoxytrityl tetrafluoroborate (2) are highly effective reagents for the methoxytritylation and dimethoxytritylation, respectively, of primary alcohols including sugars.