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.
Enzyme-Catalyzed Synthesis of 1-Deoxymannojirimycin, 1-Deoxynojirimycin, and 1,4-Dideoxy-1,4-imino-D-arabinitol
โ 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
No coin nor oath required. For personal study only.
โฆ 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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