Novel Potential Anticancer Naphthyl Phosphoramidates of BVdU: Separation of Diastereoisomers and Assignment of the Absolute Configuration of the Phosphorus Center
摘要:
We have previously reported our SAR optimization of the anticancer agent thymectacin. Tuning of the parent ProTide structure initially involved the amino acid and, subsequently, the aromatic masking group on the phosphate moiety. Herein, derivatives bearing the combined modifications are reported and biological evaluation is described. Moreover, separation of the diastereoisomeric final product mixture shows a different cytostatic activity for the two diastereoisomers. Through computational and NMR studies, the absolute stereochemistry of the phosphorus center of the two diastereoisomers has been suggested.
Phosphoramidate and phosphate prodrugs of (−)-β-d-(2R,4R)-dioxolane-thymine: Synthesis, anti-HIV activity and stability studies
摘要:
A series of phosphoramidate and phosphate prodrugs of DOT were synthesized via dichlorophosphate or H-phosphonate chemistry and evaluated for their anti-HIV activity against LAI M 184V mutants in PBM cells as well as for their cytotoxicity. The antiviral and cytotoxic profiles of the prodrugs were compared with that of the parent compound (DOT), and it was found that four aryl phosphoramidates 5, 18, 20, and 26 showed a significant enhancement (8- to 12-fold) in anti-HIV activity without cytotoxicity. Chemical stability of these prodrugs was evaluated in phosphate buffer at pH values of biological relevance (i.e., pH 2.0 and 7.4). Enzymatic hydrolysis was also studied in esterase or lipase in buffer solution. Chemical stability studies indicate that the phosphoramidates have good chemical stability at pH 2.0 and at pH 7.4 phosphate buffer. Phosphoramidate prodrugs were hydrolyzed in vitro by esterase or lipase and found to be better substrates for lipases than for esterases. 1,3-Diol cyclic phosphates showed potent anti-HIV activity without increasing the cytotoxicity compared with that of DOT and have good chemical and enzymatic stability. Long-chain lipid phosphates, although showed potent anti-HIV activity, exhibited increased cytotoxicity. (c) 2005 Elsevier Ltd. All rights reserved.
[EN] NEW 2' AND/OR 5' AMINO-ACID ESTER PHOSPHORAMIDATE 3'-DEOXY ADENOSINE DERIVATIVES AS ANTI-CANCER COMPOUNDS<br/>[FR] NOUVEAUX DÉRIVÉS DE 3'-DÉSOXYADÉNOSINE PRÉSENTANT UN FRAGMENT ESTER DE PHOSPHORAMIDATE ET D'ACIDE AMINÉ 2' ET/OU 5' COMME COMPOSÉS ANTICANCÉREUX
申请人:NUCANA BIOMED LTD
公开号:WO2016083830A1
公开(公告)日:2016-06-02
The present invention relates to chemical compounds, the compounds for use in a method of treatment, particularly in a method of prophylaxis or treatment for cancer, a process for preparation of the compounds and pharmaceutical compositions comprising the compounds. The compounds may, in particular, be useful in the treatment of leukaemia, lymphoma and/or solid tumours inhomo sapiens. The compounds are derivatives of cordycepin (3'-deoxyadenosine) having a 2' and/or 5'- amino-acid ester phosphoramidate moeity.
2′ and/or 5′ amino-acid ester phosphoramidate 3′-deoxy adenosine derivatives as anti- cancer compounds
申请人:NuCana plc
公开号:US10570168B2
公开(公告)日:2020-02-25
Disclosed are chemical compounds, the compounds for use in a method of treatment, particularly in a method of prophylaxis or treatment for cancer, a process for preparation of the compounds and pharmaceutical compositions comprising the compounds. The compounds may, in particular, be useful in the treatment of leukaemia, lymphoma and/or solid tumours in homo sapiens. The compounds are derivatives of cordycepin (3′-deoxyadenosine) having a 2′ and/or 5′-amino-acid ester phosphoramidate moiety.
Disclosed are chemical compounds, the compounds for use in a method of treatment, particularly in a method of prophylaxis or treatment for cancer, a process for preparation of the compounds and pharmaceutical compositions comprising the compounds. The compounds may, in particular, be useful in the treatment of leukaemia, lymphoma and/or solid tumours in Homo sapiens. The compounds are derivatives of cordycepin (3′-deoxyadenosine) having a 2′ and/or 5′-amino-acid ester phosphoramidate moiety.
Disclosed are chemical compounds, the compounds for use in a method of treatment, particularly in a method of prophylaxis or treatment for cancer, a process for preparation of the compounds and pharmaceutical compositions comprising the compounds. The compounds may, in particular, be useful in the treatment of leukaemia, lymphoma and/or solid tumours in
homo sapiens
. The compounds are derivatives of cordycepin (3′-deoxyadenosine) having a 2′ and/or 5′-amino-acid ester phosphoramidate moiety.