Process for the manufacture of intermediates in camptothecin production
申请人:Peters Rene
公开号:US20060189807A1
公开(公告)日:2006-08-24
The present invention provides a process for the manufacture of the compound of formula (1):
which is a key intermediate in the manufacture of camptothecin (CPT). This compound continues to serve as an attractive and promising lead structure for the development of new anti-cancer drugs.
[EN] NEW SYNTHESIS OF A CAMPTOTHECIN SUBUNIT<br/>[FR] NOUVELLE SYNTHÈSE D'UNE SOUS-UNITÉ DE CAMPTOTHÉCINE
申请人:HOFFMANN LA ROCHE
公开号:WO2006089657A1
公开(公告)日:2006-08-31
[EN] The present invention provides a process for the manufacture of the compound of formula (1) which is a key intermediate in the manufacture of camptothecin (CPT). This compound continues to serve as attractive and promising lead structure for the development of new anti-cancer drugs. [FR] La présente invention concerne un procédé de fabrication du composé de la formule (1) qui représente un intermédiaire important dans la fabrication de la camptothécine (CPT). Ce composé continue de servir comme une structure principale attrayante et prometteuse pour le développement de nouveaux médicaments anticancéreux.
Practical formal total synthesis of (rac)- and (S)-camptothecin
作者:René Peters、Martin Althaus、Anne-Laure Nagy
DOI:10.1039/b514147h
日期:——
A practical, efficient and scalable formaltotalsynthesis of (rac)- and (S)-camptothecin is described, which proceeds via the known DE ring building blocks 19 and (S)-19, respectively. The racemic synthesis starts from diethyl oxalate and uses straightforward carbonyl chemistry in order to generate the pyridone ring system. 19 was formed in 8.4% overall yield over 9 linear steps avoiding any chromatographic