Abstract:
:A new anhydroribotrisaccharide monomer, A2B3LR (1), was synthesized and ROP was carried out to elucidate the polymerizability and to obtain oligosaccharide-branched polysaccharides with defined structures. The new trisaccharide monomer was found to be polymerized readily with BF(3) . OEt(2) as a catalyst at -40 degrees C to give a lactose-branched polymer. Copolymerization with ADBR gave the corresponding copolymers in good yields. After removal of protective benzyl groups, D-lactose-branched ribofuranans with free hydroxyl groups were obtained in good yields. The structure of polymers was analyzed by (1)H, 13C, and two-dimensional NMR measurements, suggesting that D-lactose-branched ribofuranans had (1 --> 5)-alpha stereoregularity.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Yoshida D,Han S,Narita K,Hattori K,Yoshida Tdoi
10.1002/mabi.200800316subject
Has Abstractpub_date
2009-07-07 00:00:00pages
687-93issue
7eissn
1616-5187issn
1616-5195journal_volume
9pub_type
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