نتایج جستجو برای: thioglycoside

تعداد نتایج: 73  

2017
Siddarth Agrawal Marta Wozniak Mateusz Luc Kinga Walaszek Ewa Pielka Wieslaw Szeja Gabriela Pastuch-Gawolek Andrzej Gamian Piotr Ziolkowski

The rationale for the implementation of novel therapies should be based on hallmarks of cancer. Two novel compounds labelled as thioglycoside A and B were designed and evaluated on breast and colon cancer cell lines. We assessed their cytotoxic effect after sensitizing cancer cells with insulin. In order to explore the underlying mechanisms, we performed tests to assess cell migration and motil...

2014
Aritra Chaudhury Sajal K Maity Rina Ghosh

The present work describes efficient avenues for the synthesis of the trisaccharide repeating unit [α-D-Rhap-(1→3)-α-D-Rhap-(1→3)-α-D-Rhap] associated with the A-band polysaccharide of Pseudomonas aeruginosa. One of the key steps involved 6-O-deoxygenation of either partially or fully acylated 4,6-O-benzylidene-1-thiomannopyranoside by radical-mediated redox rearrangement in high yields and reg...

Journal: :Chemistry, an Asian journal 2010
Shih-Sheng Chang Che-Hao Shih Kwun-Cheng Lai Kwok-Kong Tony Mong

The beta-selectivity of mannosylation has been found to be dependent on the addition rate of the mannosyl trichloroacetimidate donor in an inverse-addition (I-A) procedure. This rate dependent I-A procedure can improve the selectivity of direct beta-mannosylation and is applicable to orthogonal glycosylations of thioglycoside acceptors. Further elaboration of this novel procedure enables the de...

Journal: :Angewandte Chemie 2011
Shao-Ru Lu Yen-Hsun Lai Jiun-Han Chen Chih-Yueh Liu Kwok-Kong Tony Mong

The key steps in oligosaccharide synthesis are protectinggroup manipulation and stereoselective glycosylation. Various strategies have emerged to expedite glycosylation, and some of these strategies have been elaborated for automated solid-phase synthesis and one-pot cascade glycosylation. Most glycosylation strategies rely on traditional methods for stereochemical control over glycosidic-bond ...

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