Novel glycolipid derivatives, where the substituent of the sphingosine
base part is a short carbon chain alkyl group, substituted or
unsubstituted cycloalkyl group, substituted or unsubstituted aryl group
or substituted or unsubstituted aralkyl group and efficient synthetic
methods for practical mass production of the same and intermediates
useful for the synthesis of these compounds. Glycolipids having the
formula (I): where R.sup.3 indicates a substituted or unsubstituted
C.sub.1 to C.sub.7 linear alkyl group, substituted or unsubstituted
cycloalkyl group, substituted or unsubstituted aryl group, or substituted
or unsubstituted aralkyl group and R.sup.8 indicates a substituted or
unsubstituted C.sub.1 to C.sub.35 alkyl group, substituted or
unsubstituted aryl group or substituted or unsubstituted aralkyl group
are chemically synthesized.