Glucosamine disaccharides, method for their preparation, pharmaceutical composition comprising same, and their use

摘要

PCT No. PCT/EP94/03852 Sec. 371 Date Sep. 11, 1996 Sec. 102(e) Date Sep. 11, 1996 PCT Filed Nov. 17, 1994 PCT Pub. No. WO95/14026 PCT Pub. Date May 26, 1995The invention relates to beta (1->6) glucosamine disaccharides having general formula (I) to a method for preparing these disaccharides, comprising the steps of: i) providing a starting material comprising lipid A moiety of lipopolysaccharide-comprising microorganisms; and ii) subjecting the starting material to an alkaline treatment such as lipid A moiety is O-deacylated at the 3-position and at the 3'-position, to pharmaceutical compositions comprising as an active ingredient these disaccharides, and to these disaccharides for use as an immunomodulating agent, anti-tumor agent, and vaccine component.