Process for the direct preparation of 5-alkoxy and 5-acyloxy analogues of campthothecins or mappicene ketones
申请人:Council of Scientific and Industrial Research
公开号:US20040127711A1
公开(公告)日:2004-07-01
A convenient and efficient process for direct preparation of 5-alkoxy and 5-acyloxy analogues of camptothecins (anticancer compounds) and mappicine ketones (antiviral compounds) has been invented by treatment of the parent compounds with alcohols and acids respectively in the presence of ceric ammonium nitrate (CAN) at room temperature. The process is simple, economic and completed within a short period of time.
[EN] PROCESS FOR THE DIRECT PREPARATION OF 5-ALKOXY AND 5-ACYLOXY ANALOGUES OF CAMPTHOTHECINS OR MAPPICENE KETONES<br/>[FR] PROCEDE DE PREPARATION DIRECTE D'ANALOGUES DE 5-ALCOXY ET DE 5-ACYLOXY DE CAMPTOTHECINES OU DE MAPPICINES CETONES
申请人:COUNCIL SCIENT IND RES
公开号:WO2004055020A1
公开(公告)日:2004-07-01
A convenient and efficient process for direct preparation of 5-alkoxy and 5-acyloxy analogues of camptothecins (anticancer compounds) and mappicine ketones (antiviral compounds) has been invented by treatment of the parent compounds with alcohols and acids respectively in the presence of ceric ammonium nitrate (CAN) at room temperature. The process is simple, economic and completed within a short period of time.
[EN] NOVEL WATER-SOLUBLE C-RING ANALOGUES OF 20 (S)-CAMPTOTHECIN<br/>[FR] NOUVEAUX ANALOGUES DE NOYAUX C HYDROSOLUBLES DE 20(S)-CAMPTOTHECINE
申请人:DR. REDDY'S RESEARCH FOUNDATION
公开号:WO1997046563A1
公开(公告)日:1997-12-11
(EN) Novel water-soluble C-ring analogues of 20(S)-camptothecin having general formula (1). All the compounds of formula (1) are prepared from the compounds of general formula (2) having 20(S)-chiral carbon where R1 to R5 have the meaning given above. The compounds of formula (1) possess potent anti-cancer and anti-viral properties. The invention also provides an alternate process for the preparation of known C-5 substituted compounds of formula (1).(FR) Nouveaux analogues de noyaux C hydrosolubles de 20(S)-camptothécine ayant la formule générale (1). Tous les composés de la formule (1) sont préparés à aprtir des composés de la formule générale (2) présentant un carbone 20(S)-chiral dans laquelle R1 à R5 ont la notation donnée dans la description. Les composés de la formule (1) présentent des propriétés anticancéreuses et antivirales puissantes. L'invention concerne également un autre procédé de préparation de composés à substitution C-5 connus de la formule (1).
Novel water soluble c-ring analogues of 20 (s)-camptothecin
申请人:DR. REDDY'S RESEARCH FOUNDATION
公开号:EP1138682A1
公开(公告)日:2001-10-04
Novel water-soluble C-ring analogues of 20(s)-camptothecin having general formula (1). All the compounds of formula (1) are prepared from the compounds of general formula (2) having 20(s)-chiral carbon where R1 to R5 have the meaning given above. The compounds of formula (1) possess potent anti-cancer and anti-viral properties. The invention also provides an alternate process for the preparation of known C-5 substituted compounds of formula (1).