A Chemistry of Bisbenzylisoquinoline Alkaloid: Isomerization of Berbamine to Penduline in Methanol by Radical Reaction
摘要:
Berbamine (1), a bisbenzylisoquinoline alkaloid, when treated with methanol, was isomerized to penduline (2), the C-1 epimer of 1. This isomerization was proved to proceed via a radical reaction by a free radical generated from methanol and molecular oxygen.
A Chemistry of Bisbenzylisoquinoline Alkaloid: Isomerization of Berbamine to Penduline in Methanol by Radical Reaction
摘要:
Berbamine (1), a bisbenzylisoquinoline alkaloid, when treated with methanol, was isomerized to penduline (2), the C-1 epimer of 1. This isomerization was proved to proceed via a radical reaction by a free radical generated from methanol and molecular oxygen.
Phenolderivate des Bisbenzylisochinolin-alkaloids Tetrandrin durch selektive Etherspaltung
作者:Peter Pachaly、Maria Praest
DOI:10.1002/ardp.19823150705
日期:——
Unter kontrollierten Reaktionsbedingungen lassen sich aus Tetrandrin (1) selektiv Fangchinolin (3) bzw. Atherospermolin (5) und 6′,7,12‐Tris‐(O‐demethyl)‐tetrandrin (7) gewinnen. Als Nebenprodukte werden Pendulin (2) und 6′,7‐Bis‐(O‐demethyl)‐tetrandrin (6) identifiziert.
BI-BENZYL ISOQUINOLINE DERIVATIVE, PREPARATION METHOD AND USE THEREOF IN HEPATOPATHY TREATMENT AND PREVENTION
申请人:THE KEY LABORATORY OF CHEMISTRY FOR NATURAL PRODUCTS OF GUIZHOU PROVINCE AND CHINESE ACADEMY
公开号:US20170260161A1
公开(公告)日:2017-09-14
The invention disclosed a compound of general formula (I), a single stereoisomer thereof, a mixture of stereoisomers thereof, and a prodrug, pharmaceutically acceptable salt and metabolite thereof, X
1
, X
2
, X
3
, X
4
, R
1
, R
2
, x, y and z being as defined in the present invention.
A Chemistry of Bisbenzylisoquinoline Alkaloid: Isomerization of Berbamine to Penduline in Methanol by Radical Reaction
Berbamine (1), a bisbenzylisoquinoline alkaloid, when treated with methanol, was isomerized to penduline (2), the C-1 epimer of 1. This isomerization was proved to proceed via a radical reaction by a free radical generated from methanol and molecular oxygen.