Synthesis of Analogues of the Antitumor (1→6)‐Branched (1→3)‐Glucohexaose

β‐D‐Glcp( 1→3)‐[β‐D‐Glcp‐( 1→6)‐/α‐D‐Manp‐( 1→3)‐β‐D‐Glcp( 1→3)‐[β‐D‐Glcp‐(1→6)‐] D ‐Glcp (18) and β‐D‐Glcp( 1→3)‐[β‐D‐Glcp‐( 1→6)‐] α‐D‐Manp‐( 1→3)‐β‐D‐Glcp‐( 1 →3)‐[β‐D‐Glcp‐( 1→6)‐]β‐D‐Glcp‐D‐(1→3)‐Glcp‐1→OMe (29) were synthesized as the analogues of the immunomodulator β‐D‐Glcp‐(1→3)‐[β‐D‐Glcp‐(1→6)‐]α‐D‐Glcp‐(1→3)‐β‐D‐Glcp‐(1→3)‐(β‐D‐Glcp‐(1→6)‐] D ‐Glcp through coupling of trisaccharide donors 9 with trisaccharide acceptor 16 and terrasaccharide acceptor 27 followed by deprotection. respectively.