Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Costantino, Valeria and a compound is mentioned, 14215-68-0, N-((2S,3R,4R,5R,6R)-2,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide, introducing its new discovery. 14215-68-0
Amphiceramide A and B, novel glycosphingolipids from the marine sponge Amphimedon compressed
Glycolipid analysis of the Caribbean sponge Amphimedon compressa has shown it to contain two novel glycosphingoli- pids, amphiceramide A (1a) andB(2a), which possess an unusual A6-phytosphingosine. The saccharide chain of amphiceramide A is composed of a B-glucose residue glycosylated at the 6-position by an N-acetyl-B-glucosamine and has never been found before in a natural product. The saccharide chain of amphiceramide B consists of an allolactose [Gal(1p 6)Glc] residue p-linked to the ceramide and is found here for the first time in a natural glycosphingolipid. In addition, the sponge contains a new molecular species, acetamidoglucosyl ceramide (3a), and the known glucosyl ceramide 4a (halicerebroside A) and melibiosyl ceramide 5a (amphimelibioside C).
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics