- Synthesis of a Tridecasaccharide Lipooligosaccharide Antigen from the Opportunistic Pathogen Mycobacterium kansasii
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The outer surfaces of mycobacteria, including the organism that causes tuberculosis, are decorated with an array of immunomodulatory glycans. Among these are lipooligosaccharides (LOSs), a class of molecules for which the function remains poorly understoo
- Bai, Bing,Liu, Yu-Hsuan,Lowary, Todd L.,Shen, Ke
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supporting information
p. 24859 - 24863
(2021/10/25)
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- Antioxidant C-glycosyl flavones from the leaves of Sasa kurilensis var. gigantea
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C-glycosyl flavones, kurilensin A (1) and B (2), together with two known compounds, tricin-4′-O-β-d-glucopyranoside (3) and tricin-5-O-β-d-glucopyranoside (4), were isolated from hot-water extracts of the leaves of Sasa kurilensis. The structure of the compounds was determined by spectroscopic analyses including 1D, 2D NMR and MS. The absolute configuration of sugar moieties in 1 and 2 was determined by chiral HPLC analyses of the benzoyl derivatives of acid hydrolysis. Compounds 1 and 2 exhibited higher radical scavenging activity than ascorbic acid in the 1,1-diphenyl-2-pycrylhydrazyl (DPPH) assay system.
- Hasegawa, Tatsuya,Tanaka, Ayumi,Hosoda, Akiko,Takano, Fumihide,Ohta, Tomihisa
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p. 1419 - 1424
(2008/09/20)
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- Uncatalyzed and chorismate mutase catalyzed claisen rearrangements of 5,6-dihydrochorismate and 6-Oxa-5,6-dihydrochorismate
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The synthesis of 6-oxa-5,6-dihydrochorismic acid (4) from D-xylose is described. The half-lives for the uncatalyzed Claisen rearrangements of 5,6-dihydrochorismic acid (3) and 4 in D2O at 30 °C were 49000 and 1200 h, respectively, compared to a
- Delany III, John J.,Padykula, Robert E.,Berchtold, Glenn A.
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p. 1394 - 1397
(2007/10/02)
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