Tetrahydrolipstatin: Thermal and Hydrolytic Degradation
作者:Henri Stalder、Pierre R. Schneider、Gottfried Oesterhelt
DOI:10.1002/hlca.19900730427
日期:1990.6.20
The thermal and hydrolyticdegradation of tetrahydrolipstatin (THL, 1) was investigated. All main degradation products were isolated, characterized, and synthesized. Labile intermediates unavailable to isolation were detected and identified by GC/MS analysis of their silylated derivatives, and whenever possible, compared with independently prepared reference compounds. The identified degradation products
Process for production of lipstatin and microorganisms therefore
申请人:KRKA, D.D., Novo Mesto
公开号:EP2141236A1
公开(公告)日:2010-01-06
This invention relates to improved processes for the production of lipstatin and /or orlistat and means therefore. In particular, the invention relates to microorganisms characterized by abolished or reduced activity of the BKD complex, e.g. mutated branched-chain 2-oxo acid dehydrogenase (BKD) having reduced or abolished activity, nucleotide sequences suitable for achieving reduced or abolished BKD activity, and microorganisms having reduced or abolished BKD activity. The invention in particular relates to lipstatin-producing microorganisms of the genus Streptomyces. Furthermore, this invention relates to the use of these nucleotide sequences, microorganisms or BKD having reduced or abolished activity in the production of lipstatin and/or orlistat.