[EN] INTERMEDIATE AND PROCESSES INVOLVED IN THE PREPARATION OF 2 ' -CYANO-2 ' -DE0XY-N4-PALMIT0YL-1-BETA-ARABIN0FURAN0SYLCYTOSINE [FR] INTERMÉDIAIRE ET PROCÉDÉS ASSOCIÉS À LA PRÉPARATION DE 2'-CYANO-2'-DÉSOXY-N4-PALMITOYL-1-BÊTA-ARABINOFURANOSYLCYTOSINE
[EN] PREPARATION OF INTERMEDIATES USEFUL IN THE SYNTHEIS OF 2'-CYANO-2'-DEOXY-N4-PALMITOYL-1-BETA-D-ARABINOFURANOSYLCYTOSINE [FR] PRÉPARATION D'INTERMÉDIAIRES UTILES DANS LA SYNTHÈSE DE 2'-CYANO-2'-DÉSOXY-N4-PALMITOYL-1-BETA-D-ARABINOFURANOSYLCYTOSINE
NOVEL STABLE CRYSTAL OF 1-(2'-CYANO-2'-DEOXY-BETA-D-ARABINOFURANOSYL)CYTOSINE MONOHYDROCHLORIDE
申请人:Watanabe Shotaro
公开号:US20120029182A1
公开(公告)日:2012-02-02
Disclosed is a stable crystal of 1-(2′-cyano-2′-deoxy-β-D-arabinofuranosyl)cytosine monohydrochloride. There is provided a crystal of 1-(2′-cyano-2′-deoxy-β-D-arabinofuranosyl)cytosine monohydrochloride having characteristic peaks at 13.7°, 15.7°, 16.0°, 18.6°, 20.3°, and 22.7° as diffraction angles (2θ±0.1°) measured by powder X-ray diffraction, and having a melting point of 192° C. to 197° C.
Nucleosides and Nucleotides. 141. Chemical Stability of a New Antitumor Nucleoside, 2'-C-Cyano-2'-deoxy-1-.beta.-D-arabino-pentofuranosylcytosine (CNDAC) in Alkaline Medium: Formation of 2'-C-Cyano-2'-deoxy-1-.beta.-D-ribo-pentofuranosylcytosine (CNDC) and Its Antitumor Activity
We have designed2'-C-cyano-2'-deoxy-1-beta-D-arabino- pentofuranosylcytosine (CNDAC) as a potentialmechanism-basedDNA-strand-breakingnucleoside, which showed potent tumor cell growth inhibitory activity against various human tumor cell lines in vitro and in vivo. When measuring the pKa of the 2' alpha-proton of CNDAC, we found that CNDAC epimerized to 2'-C-cyano-2'-deoxy-1-beta-D-ribo-pentofuranosylcytosine
[EN] PREPARATION OF INTERMEDIATES USEFUL IN THE SYNTHEIS OF 2'-CYANO-2'-DEOXY-N4-PALMITOYL-1-BETA-D-ARABINOFURANOSYLCYTOSINE<br/>[FR] PRÉPARATION D'INTERMÉDIAIRES UTILES DANS LA SYNTHÈSE DE 2'-CYANO-2'-DÉSOXY-N4-PALMITOYL-1-BETA-D-ARABINOFURANOSYLCYTOSINE
申请人:CYCLACEL LTD
公开号:WO2009136158A1
公开(公告)日:2009-11-12
The present invention relates to a process for preparing a compound of formula 682-4, said process comprising the steps of: (i) converting a compound of formula 682-1 into a compound of formula 682-2'; (ii) converting said compound of formula 682-2' into a compound of formula 682-3; and (iii) converting said compound of formula 682-3 into a compound of formula 682-4. Further aspects of the invention relate to the use of the above process in the preparation of 2'-cyano-2'-deoxy-N4 -palmitoyl-1-β-D-arabmofuranosylcytosine, a pyrimidine nucleoside which is therapeutically useful in the treatment and/or prevention of cancer.