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.