Cerasodine and Cerasonine: New Oxoprotoberberine Alkaloids from Polyalthia cerasoides
摘要:
Two new 7,8-dihydro-8-oxoprotoberberine alkaloids, cerasodine (1) and cerasonine (2), were isolated from the stem bark of Polyalthia cerasoides (Annonaceae).
The invention provides a compound of formula (I): or a salt or prodrug thereof, wherein R
1
, R
4
-R
8
, R
10
, R
2
′-R
6
′, W, and A have any of the values described in the specification, as well as compositions comprising a compound of formula (I). The compounds are useful as antibacterial agents.
First Total Synthesis of the Phenolic 7,8-Dihydro-8-oxoprotoberberine Alkaloid, Cerasonine
作者:Thanh Nguyen Le、Won-Jea Cho
DOI:10.1248/cpb.56.1026
日期:——
First total synthesis of the phenolic protoberberine, cerasonine, was accomplished through a coupling reaction between o-toluamide and benzonitrile. This key step provided the 3-arylisoquinoline which was then successfully converted to 7,8-dihydro-8-oxoprotoberberine through an intramolecular SN2 reaction.
Cerasodine and Cerasonine: New Oxoprotoberberine Alkaloids from <i>Polyalthia cerasoides</i>
作者:M. Carmen González、Carmen Zafra-Polo、M. Amparo Blázquez、Angel Serrano、Diego Cortes
DOI:10.1021/np960578f
日期:1997.2.1
Two new 7,8-dihydro-8-oxoprotoberberine alkaloids, cerasodine (1) and cerasonine (2), were isolated from the stem bark of Polyalthia cerasoides (Annonaceae).