Total synthesis of 2-Arachidonylglycerol (2-Ara-Gl) was accomplished starti
ng from arachidonic acid and glycerol. The sequence involves selective prot
ection of the primary alcohols of glycerol, esterification, and mild hydrol
ysis of the protecting groups. A unique hydrolysis condition was developed
to prevent isomerization of the 2-Ara-Gl to the more stable I-monoglyceride
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