89064-74-4Relevant articles and documents
Synthesis of β-C-Glycopyranosyl Aldehydes and 2,6-Anhydro-heptitols
Khatri, Vinod,Kumar, Amit,Singh, Balram,Malhotra, Shashwat,Prasad, Ashok K.
, p. 11169 - 11174 (2015)
A convenient route has been developed for the diastereoselective synthesis of β-C-glycopyranosyl aldehydes from d-glucose, d-mannose, and d-galactose. The key step in the synthesis of C-glycosyl aldehydes is the aryl driven reductive dehydration on 1-phen
TOLL-LIKE RECEPTOR 9 AGONISTS
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Page/Page column 43, (2009/02/10)
The present invention provides TLR9 agonists comprising, as an active ingredient, a compound represented by formula (I): (wherein a represents 0 or 1; n represents an integer of 0 to 2; m represents an integer of 0 to 5; X1 and X2 each independently represent a hydrogen atom or hydroxy; Y represents an oxygen atom or a sulfur atom; -Q1-represents -O- or the like; -Q2- represents -O- or the like; -Z- represents -O- or the like; R1, R3 and R4 each independently represent hydroxy or the like; R2 and R5 each independently represent a hydrogen atom, hydroxy or the like; and A represents 6-aminopurin-9-yl or the like) or a pharmaceutically acceptable salt thereof, and the like.
Deoxy-nitrosugars. Stereoelectronic Control in the Reductive Denitration of Tertiary Nitro Ethers. A Synthesis of 'C-Glycosides'
Baumberger, Franz,Vasella, Andrea
, p. 2210 - 2222 (2007/10/02)
The separate, radical denitration with Bu3SnH of the pyranose derivatives 3, 4, 9, and 10 gave in good yields exclusively the 'C-glycosides' 5 and 11, respectively (Scheme 1).Similar reduction of the cylohexyl derivatives 15, 16, 19 and 20 gave 4:1 mixtures of 17, 18, 21 and 22, respectively, always with predominant formation of an axial C,H-bond.In the furanose series a divergent behaviour was observed for the D-mannose-derived nitro ethers 25 and 27 and the D-ribose-derived nitro ethers 30 and 31, respectively, in that the former two gave isomerically homogeneous reduction products (26 and 28, respectively; Scheme 3) and the latter a 1:1 mixture of the diastereoisomers 32 and 33 (Scheme 4).The stereochemical results were explained on the basis of the stereoelectronic effect of the ring O-atom, the preferred conformation of the intermediate, pyramidal alkoxyalkyl radicals and steric effects in the trioxabicyclooctane ring system.