A method for preparation of the tetrasaccharide lacto n neotetraose (lnnt) containing n acetyllactosamine

摘要

The present invention relates to a method for preparation of the tetrasaccharide lacto N neotetraose (LNnt formula (I)) especially in large scale as well as intermediates in the synthesis a new crystal form (polymorph) of LNnt and the use thereof in pharmaceutical or nutritional compositions.