Pictet-Spenglerreactions of m-tyramine and aldehydes producedtetrahydroisoquinolines in the presence of a catalytic amount of Ca[OCH(CF3)2]2. This reaction occurs with a variety of aryl, heteroaryl, and alkyl aldehydes, producingtetrahydroisoquinolines in high yield and with high regioselectivity. This calcium-promoted Pictet-Spenglerreaction provides a mild alternative to the traditional Bronsted
S-Tetrahydroprotoberberinoxidase, Verfahren zu deren Herstellung ind ihre Verwendung
申请人:Consortium für elektrochemische Industrie GmbH
公开号:EP0154035A2
公开(公告)日:1985-09-11
Die Erfindung betrifft S-Tetrahydroprotoberberinoxidase. Das genannte Enzym oxidiert selektiv S- Tetrahydroprotoberberine und S-1-Benzyl-1.2.3.4-tetrahydro-isochinoline In Gegenwart von Sauerstoff zu den entsprechenden Protoberberinen bzw. 1-Benzyl-3,4-Dihydro-benzylisochinolinen.
[EN] BIOTRANSFORMATION REACTIONS<br/>[FR] RÉACTIONS DE BIOTRANSFORMATION
申请人:COMMW SCIENT IND RES ORG
公开号:WO2016065425A1
公开(公告)日:2016-05-06
The present disclosure relates to a method of preparing heteropolycyclic compounds. In some embodiments, the heteropolycyclic compounds are prepared by Pictet-Spengler reaction using a Pictet-Spenglerase biocatalyst and the aldehyde substrate for the Pictet- Spenglerase biocatalyst reaction is produced in situ by a transaminase biocatalyst. The use of the heteropolycyclic compounds is also described.
Design and Use of de novo Cascades for the Biosynthesis of New Benzylisoquinoline Alkaloids
作者:Yu Wang、Nadine Tappertzhofen、Daniel Méndez‐Sánchez、Maria Bawn、Boyu Lyu、John M. Ward、Helen C. Hailes
DOI:10.1002/anie.201902761
日期:2019.7.22
The benzylisoquinolinealkaloids (BIAs) are an important group of secondary metabolites from higher plants and have been reported to show significant biological activities. The production of BIAs through synthetic biology approaches provides a higher‐yielding strategy than traditional synthetic methods or isolation from plant material. However, the reconstruction of BIA pathways in microorganisms by