- Enantioselective total synthesis of (-)-Clavosolide A and B
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Enantioselective total synthesis of (-)-clavosolide A and B was reported in full including the synthesis of proposed structure of (-)-clavosoldie A (1), revised structure of (-)-clavosoldie A (5), and revised structure of (-)-clavosoldie B (6). The relative and absolute stereochemistries of the natural products were confirmed unambiguously by comparing the optical rotation values and 1H and 13C NMR spectra of them.
- Son, Jung Beom,Kim, Si Nae,Kim, Na Yeong,Hwang, Min-Ho,Lee, Wonsun,Lee, Duck Hyung
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scheme or table
p. 653 - 663
(2010/08/19)
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- Enantioselective total synthesis of (-)-clavosolide B
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Enantioselective synthesis of 2, a revised structure for (-)-clavosolide B, was accomplished by a convergent approach, where syn-selective aldol, hydroxy-directed cyclopropanation, Mitsunobu inversion, Schmidt-type glycosylation, and macrolactonization re
- Son, Jung Beom,Hwang, Min-Ho,Lee, Wonsun,Lee, Duck-Hyung
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p. 3897 - 3900
(2008/02/11)
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- Studies towards the synthesis of the β-D-Xyl-(1→ 3)-L-ara disaccharide moiety of OSW-1 from Ornithogalum saundersiae
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The OSW-1 disaccharide having 2-O-p-methoxybenzoyl-β-D-xylopyranosyl- (1 → 3)-L-arabinopyranoside structure was obtained as the benzylated 4-O-acetyl derivative 19. Also, the 4,2′-di-O-acetate 18 was synthesized by a short synthetic approach. The arabinos
- Suhr, Rene,Thiem, Joachim
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p. 261 - 276
(2007/10/03)
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- Synthesis of oligosaccharins: a chemical synthesis of propyl O-beta-D-galactopyranosyl-(1----2)-O-alpha-D-xylopyranosyl-(1----6)- O-beta-D-glucopyranosyl-(1----4)-beta-D-glucopyranoside.
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Condensation of allyl 3,4-di-O-benzyl-beta-D-xylopyranoside with 2-O-acetyl-3,4,6-tri-O-benzyl-alpha-D-galactopyranosyl chloride in dichloromethane in the presence of silver triflate gave allyl 2-O-(2-O-acetyl-3,4-6-tri-O-benzyl-beta-D-galactopyranosyl)-3
- Wotovic,Jacquinet,Sinay
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p. 235 - 245
(2007/10/02)
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