10470-80-1Relevant articles and documents
Radical-mediated bromination of peracetylated 5-thio-D-xylopyranosyl bromides: An easy access to the corresponding anomeric orthothiolactones
Baudry, Michel,Bouchu, Marie-Noelle,Descotes, Gerard,Praly, Jean-Pierre,Bellamy, Francois
, p. 237 - 246 (1996)
On treatment with N-bromosuccinimide in refluxing carbon tetrachloride under irradiation with visible light, both α and β anomers of 2,3,4-tri-O-acetyl-5-thio-D-xylopyranosyl bromide were converted mainly to 2,3,4-tri-O-acetyl-5-thio-D-xylopyranosylidene dibromide (5) and to 2,3,4-tri-O-acetyl-5(S)-5-bromo-5-thio-D-xylopyranosylidene dibromide (6). Whereas the more reactive β anomer could be transformed cleanly into the dibromide 5 after heating for 2 h, complete conversion of the α-bromide required a prolonged treatment (~ 5 h) leading to a mixture of di-, tri- and tetra-bromides. Similarly, an anomeric mixture of 2,3,4,6-tetra-O-acetyl-5-thio-D-glucopyranosyl bromide yielded mainly tribromide 11 after prolonged heating. The reaction rates and the structure of the products showed again the higher reactivity of axial C-H bonds at either C-1 or C-5 in pyranosyl rings towards S(H)2 processes. However, activation by the sulfur atom allowed attack of equatorial bonds as well and polybromination at both C-1 and C-5. Treatment of the C-1 dibromide 5 by silver triflate in the presence of either alcohols or thiols yielded the corresponding 5-thiosugar ortholactones 12-15. Methyl 1-methoxy-5-thio-D-xylopyranoside (18), obtained from 12 on deacetylation, showed no venous antithrombotic activity in rats according to a Wessler test.
Thioglucose compound and preparation method thereof
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, (2021/09/22)
The invention provides a thioglucose compound which has the following general formula: Wherein R is selected from H or acetyl. The preparation method of the thioglucose compound is easy to obtain, low in production cost and suitable for industrial product
Synthesis and Evaluation of 1,5-Dithia- d -laminaribiose, Triose, and Tetraose as Truncated β-(1→3)-Glucan Mimetics
Liao, Xiaoxiao,Větvi?ka, Václav,Crich, David
, p. 14894 - 14904 (2019/01/03)
The preparation and characterization of a series of di-, tri-, and tetrasaccharide analogues of β-(1→3)-glucans is described in which each pyranoside ring is replaced by a 5-thiopyranosyl ring and each glycosidic oxygen by a thioether. These oligomeric 1,
THIOPYRANOSE COMPOUND AND METHOD FOR PRODUCING SAME
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, (2016/12/26)
There is provided a production method of a thiopyranose compound represented by the following Formula (2) by reacting a compound represented by the following Formula (1) with a sulfur compound. X represents a leaving group. A represents an oxygen atom or