One-pot, two-step enzymatic synthesis of amoxicillin by complexing with Zn2+
β Scribed by Ye-Wang Zhang; Rui-Jiang Liu; Xi-Ming Xu
- Book ID
- 105952784
- Publisher
- Springer
- Year
- 2010
- Tongue
- English
- Weight
- 286 KB
- Volume
- 88
- Category
- Article
- ISSN
- 1432-0614
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π SIMILAR VOLUMES
## Abstract A cascade of two enzymatic transformations is employed in a oneβpot synthesis of cephalexin. The nitrile hydratase (from __R. rhodochrous__ MAWE)βcatalyzed hydration of Dβphenylglycine nitrile to the corresponding amide was combined with the penicillin G acylase (penicillin amidohydrola
The reactions of ketones 1a -o, nitromethane 2, and a stoichiometric amount of piperidine 3a or ethylenediamine 3b in the presence of mercaptan 6a in THF or CH 3 CN solution give high yields of b-nitrosulfides 7a -o. The latter can be oxidized by 8a (m-CPBA or m-CPBA/AcOH) at 08C, 8b (H 2 O 2 /AcOH)