O1,O5-dibenzoyl-O2,O4-methanediyl-xylitol
O2,O4-methanediyl-O1,O3,O5-tris-(toluene-4-sulfonyl)-xylitol
DL-O1,O3;O2,O4-dimethanediyl-O5-(toluene-4-sulfonyl)-xylitol
O2,O4-methanediyl-O1,O3,O5-tris-phenylcarbamoyl-ribitol
O2,O4-methanediyl-O1,O3,O5-tris-(toluene-4-sulfonyl)-ribitol