Abstract 6R-Configuration was assigned to three new ceramides isolated from human skin such as ceramide B [1,(2S, 3R, 4E, 6R)-6-hydroxy-N-(30′-hydroxytriacontanoyl)-4- sphingenine], ceramide 8 [2,(2S, 3R, 4E, 6R)-6-hydroxy-N-(tetracosanoyl)-4-sphingenine] and ceramide 4 {3,(2S, 3R, 4E, 6R)-6-hydroxy-N-[(30′-linoleoyloxy) triacontanoyl]-4- sphingenine}.(6R, 2′ R)-Configuration was given to another ceramide in human skin, ...
