Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Special issue | Vol 90, No. 1, 2015, pp.563-578
Published online, 4th August, 2014
DOI: 10.3987/COM-14-S(K)61
Synthesis of Model Compounds Related to Linear β-D-(1→6)-Galactosyl Side-Chains of Polysaccharides from Astragalus mongholicus Bunge

Noriyasu Hada, Ryo Shimura, Kyoko Hakamata, Hiroaki Kiyohara, Haruki Yamada, Tadahiro Takeda, and Fumiyuki Kiuchi*

*Faculty of Pharmacy, Keio University, 1-5-30 Shiba-Kouen, Minato-ku, Tokyo, Japan

Abstract

Stereocontrolled efficient syntheses of β-(16)-linked di-, tetra- and octa-galactans as model compounds of arabino-3,6-galactans isolated from Astragalus mongholicus are described. The syntheses consisted of simple glycosylation cycles: an acceptor and a donor prepared from a common compound were coupled, and the glycosylation product was converted to the acceptor and donor of the next glycosylation.