Starting from levoglucosan, methyl 2,4-dideoxy-3-O-mesyl-4-C-[(2Z)-octenyl]-alpha-D-arabino-hexo-pyranoside and (+)-2alpha-methoxy-6beta-[6-methoxycarbonyl-3-oxo-(1E)-hexenyl]-5alpha-[(2Z)-octenyl]pyran-3-one were synthesized as potential building blocks for preparation of 9-LO thromboxanes.