Sphingosine(2 S ,3 R ,4 E )-1- O -(- D -Glucopyranosyl)- N -[30-(linoleoyloxy)triacontanoyl]-4-icosasphingenine ( 1 ) was synthesized from D -glucose, L -serine, 15-pentadecanolide, and linoleic acid. The high-field 1H-NMR spectrum of 1 was identical with that of the ...