113765-22-3Relevant articles and documents
Synthesis of oligosaccharide fragments of the rhamnogalacturonan of Nerium indicum
Ma, Yuyong,Cao, Xin,Yu, Biao
, p. 63 - 74 (2013/10/21)
Three trisaccharides, one pentasaccharide, and one heptasaccharide, namely α-D-GalA-(1→2)-α-L-Rha-(1→4)-β-D-GalA-OC 3H7 (1), α-L-Rha-(1→4)-α-D-GalA- (1→4)-β-D-GalA-OC3H7 (2), α-D-GalA- (1→4)-α-DGalA-(1→2)-α-L-Rh
Synthesis of homogalacturonan fragments
Kramer, Sven,Nolting, Birte,Ott, Andrej-Jakob,Vogel, Christian
, p. 891 - 921 (2007/10/03)
Glycosylation of the D-galacturonic acid ester derivatives 15 and 17, which are prepared directly from D-galacturonic acid, with the thioglycosides 28 and 32, derived from the same sugar, provides α(1→4)-linked dimers. The formation of the glycosidic linkage between the galacturonic acid moieties is best achieved by iodonium di-sym-collidine perchlorate promotion. Thus, the 4'-O-p-methoxybenzyl dimer 38 can be obtained in 64% yield. Partial deprotection of the 4'-O-position provided the glycosyl acceptor 36, which was coupled with the donor 32 to yield the a(1''→4')-linked trimer 39 (48%). Approximately 8% of the β(1''→4')-coupled isomer was observed in the 13C NMR spectrum of the reaction mixture.
Synthesis of methyl (allyl 2,3-di-O-benzyl-β-D-galactopyranosid)uronate and methyl (2,3-di-O-benzyl-α- and β-D-galactopyranosyl fluoride)uronate
Nakahara, Yoshiaki,Ogawa, Tomoya
, p. 306 - 315 (2007/10/02)
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