71869-12-0Relevant articles and documents
Convenient Synthesis of Biologically Important Retinoids
Biesalski, Hans-K.,Doepner, Gudrun,Kunz, Horst,Paust, Joachim,John, Michael
, p. 717 - 720 (2007/10/02)
The toxic and teratogenic effects caused by the highly biologically active (all-E)-retinoic acid and its derivatives prompted us to synthesize a number of retinoids.We developed synthetic approaches to (all-E)-retinyl-β-D-glucuronide 3, methyl (retinoyl β
Preparation of retinyl glycosides and intermediates therefor
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, (2008/06/13)
A process for preparing retinyl glycosides of the formula I STR1 where Z is a glycosidic residue, by glycosidation of a completely acylated carbohydrate or completely acylated glycosidic polymer of the formula II where Y is a leaving group customary for glycosidations in the 1-position of the glycoside, comprises the acylated glycoside being reacted with an aldehyde-protected 4-hydroxy-2-methyl-2-buten-1-al under the conditions customary for glycosidations, eliminating the aldehyde protective group from the resulting compound, subjecting the resulting aldehyde to a Wittig reaction with a β-ionylideneethyltriphenylphosphonium salt and eliminating the acyl groups on the resulting retinyl glycoside in a conventional manner. The process according to the invention is particularly important for preparing retinyl glycosides of the formula Ia STR2 where R is --CH2 --OH, --COOH or --COOCH3. Intermediates of this process are also claimed.
27. Carotinoid-Glycosylester. Synthese von 8'-Apo-β-carotin-8'-saure-(β-D-glucosyl)ester und Vitamin-A-saure-(β-D-glucosyl)ester
Pfander, Hanspeter,Laderach, Manfred,Wittwer, Fritz
, p. 277 - 283 (2007/10/02)
β-D-glucosyl 8'-apo-β-carotene-8'-oate (III) and β-D-glucosyl vitamin-A-oate (VI) were regio- and stereoselctively synthesized in high yields from the N-acyl-imidazoles I and IV, respectively, or from the N-acyltriazoles II and V, resprctively, and unprotected β-D-glucose, according to the method described for the synthesis of di(β-D-glucosyl) 8,8'-diapo-carotene8,8'-dioate .It seems that this method can generally be applied for the synthesis of β-D-glucosyl esters of polyene carboxylic acids.