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

β-D-Glcp( 13)-[β-D-Glcp-( 16)-/α-D-Manp-( 13)-β-D-Glcp( 13)-[β-D-Glcp-(16)-]D-Glcp (18) and β-D-Glcp( 13)-[β-D-Glcp-( 16)-] α-D-Manp-( 13)-β-D-Glcp-( 1 3)-[β-D-Glcp-( 16)-]β-D-Glcp-D-(13)-Glcp-1OMe (29) were synthesized as the analogues of the immunomodulator β-D-Glcp-(13)-[β-D-Glcp-(16)-]α-D-Glcp-(13)-β-D-Glcp-(13)-(β-D-Glcp-(16)-]D-Glcp through coupling of trisaccharide donors 9 with trisaccharide acceptor 16 and terrasaccharide acceptor 27 followed by deprotection. respectively.