Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... 2,4-Di-O-protected D-threose, readily available from D-galactose, is a versatile intermediate for D-erythro-ephingosine syntheses via trans-selective Wittig reaction, azide introduction at the unprotected hydroxylic group, and subsequent azide reduction.
