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Enzyme-Catalyzed Synthesis of 1-Deoxymannojirimycin, 1-Deoxynojirimycin, and 1,4-Dideoxy-1,4-imino-D-arabinitol

โœ Scribed by Dr. Thomas Ziegler; Dipl.-Chem. Alexander Straub; Prof. Dr. Franz Effenberger


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
246 KB
Volume
27
Category
Article
ISSN
0044-8249

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โœฆ Synopsis


Deoxymannojirimycin (1,5-dideoxy-1 ,S-imino-~-mannitol) 8, 1 -deoxynojirimycin (1,5-dideoxy-I ,5-iminO-D-ghcitol) 9, and 1,4-dideoxy-1,4-imino-~-arabinitol 10 are very effective glycosidase inhibitors."," The piperidine derivatives 8 and 9 have been known for some time,"] whereas the pyrrolidine derivative 10 was first discovered in 1985 in two types of leguminoses, from which it was isolated.[31 Because of their great importance as active agents a considerable number of methods have been developed for the synthesis of 8 and 9, almost all of them starting from naturally occurring carbohydrates so as to introduce as many chirality centers from the very beginning.14] Recently a synthesis of 9 from L-( +)-tartaric acid was de~cribed.'~] In the case of 10, only one synthesis has been published so far;I6'


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ChemInform Abstract: Chirospecific Synth
โœ J. H. KIM; M. S. YANG; W. S. LEE; K. H. PARK ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 33 KB ๐Ÿ‘ 1 views

The protected compounds (V) and (IX) are treated with iodine in MeOH to give pyrrolidines (VI) and (X), respectively. Iodine is found to be an efficient catalyst for deprotection of several O-and N-protecting groups. -(KIM, J.