“…Naturally occurring glyco-glycero-lipids normally have a Y-shaped structure (Fig. 1a) with a polar carbohydrate head group linked to a 1,2-or 1,3-di-O-acyl or alkyl-sn-glycerol (Ishizuka and Yamakawa, 1985;Minden et al, 2002a,b;Mannock et al, 1987Mannock et al, , 1990Mannock et al, , 2001Hinz et al, 1996;Six et al, 1983;Kuttenreich et al, 1988;Nagatsu et al, 1994;Minamikawa et al, 1994). But only a few compounds with an inverse structure ( Fig.…”