Efficient synthesis of sphingosine-1-phosphonate and homo-sphingosine-1-phosphonate
摘要:
Sphingosine can be selectively transformed into 2-N,3-O-protected 1-O-mesyl derivative 8. Transformation into the bromide, Michaelis-Arbusov reaction with trimethyl phosphite, and then removal of all protective groups with LiOH afforded sphingosine-1-phosphonate (4) in high overall yield. Chain extension of 8 with KCN and ensuing reduction led to homosphingosine derivative 10 and also to homo-1-deoxysphingosine (5). 1-O-Mesylation of 10 led via the same sequence of reactions finally to homo-sphingosine-1-phosphonate (6). (C) 1997 Elsevier Science Ltd.
Novel synthetic gangliosides and pharmaceutical compositions containing such synthetic gangliosides are described. Methods of making the novel synthetic ganglioside compounds and compositions as well as their use in the field of neuroprotection is also described.