THIOPYRANOSE COMPOUND AND METHOD FOR PRODUCING SAME
申请人:FUJIFILM Corporation
公开号:US20160355497A1
公开(公告)日:2016-12-08
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 a sulfur atom. Further, each of R
1A
to R
4B
, R
1B
to R
4B
, and R
5
represents a hydrogen atom or a specific substituent.
Sugar-derived cyclic nitrones were synthesized from the corresponding aldoses through an efficient and practical procedure involving a seven-step reaction sequence in good to excellent overall yield (10-42%). This synthetic strategy, requiring only inexpensive reagents, is easy to perform and hence suitable for large-scale preparations.
Radical Cyclization in Heterocycle Synthesis. Part 9: A Novel Synthesis of Aminocyclitols and Related Compounds via Stannyl Radical Cyclization of Oxime Ethers Derived from Sugars
Stannyl radical addition–cyclization of oxime ethers derived from d-glucose, d-galactose, and d-xylose proceeded smoothly to afford alkoxyamino alcohols which were effectively converted into two types of glycosidase inhibitors or its candidates such as aminocyclitols, 1-deoxynojirimycin, and 1-deoxygalactostatin via reductive ring-expansion of trans alkoxyamino alcohols.
Intramolecular reactions of compounds derived from sugars. Part II.1 Stereo-controlled intramolecular diels-alder cyclizations of 16(E,Z),8-nonatrienes and 1-AZA-6(E,Z),8-nonatrienes
Intramolecular Diels-Alder reactions of E,Z mixtures of nonatrienes 6 and 9 led to the exclusive formation of the bicyclic compounds 10 and 11 respectively.