Ergoline derivatives as highly potent and selective antagonists at the somatostatin sst1 receptor
摘要:
Non-peptidic compounds containing the octahydro-indolo[4,3-fg]quinoline (ergoline) structural element have been optimized into derivatives with high affinity (pK(d) r sst(1) > 9) and selectivity (> 1000-fold for h sst(1) over h sst(2)-h sst(5)) for the somatostatin sst(1) receptor. In functional assays, these ergolines act as antagonists at human recombinant sst(1) receptors. Pharmacokinetic studies in rodents reveal good oral bioavailability and brain penetration for some of these compounds. (C) 2007 Elsevier Ltd. All rights reserved.
[EN] PROCESS FOR THE MANUFACTURE OF LYSERGIC ACID<br/>[FR] PROCESSUS DE FABRICATION D'ACIDE LYSERGIQUE
申请人:IVAX CORP
公开号:WO2005082902A1
公开(公告)日:2005-09-09
Lysergic acid is formed in high yields and high quality by isomerizing paspalic acid in a phase separated mixture formed by paspalic acid and a concentrated aqueous metal hydroxide solution.
PREPARATION OF MICROBIOLOGICALLY PRODUCED ERGOT ALKALOIDS
申请人:Bertel Stephan
公开号:US20110137035A1
公开(公告)日:2011-06-09
The present invention relates to a method for preparing microbiologically produced ergot alkaloids of the following formula (I), comprising the step of: a) extracting the fermentation product occurring during the biological production, said product containing at least one ergot alkaloid of formula (I), at a pH of 8-14 using an extractant with a solubility in water of 0.2 g/100 g of water to 25 g/100 g water at 20° C., wherein the amount of extractant is sufficient to form a 2-phase system together with the fermentation product.