Synthesis and Characterization of a Novel Liver-Targeted Prodrug of Cytosine-1-β-d-arabinofuranoside Monophosphate for the Treatment of Hepatocellular Carcinoma
摘要:
Cytotoxic nucleosides have proven to be ineffective for the treatment of hepatocellular carcinoma (HCC) due, in part, to their inadequate conversion to their active nucleoside triphosphates (NTP) in the liver tumor and high conversion in other tissues. These characteristics lead to poor efficacy, high toxicity, and a drug class associated with an unacceptable therapeutic index. Cyclic 1-aryl-1,3-propanyl phosphate prodrugs selectively release the monophosphate of a nucleoside (NMP) into CYP3A4-expressing cells, such as hepatocytes, while leaving the prodrug intact in plasma and extrahepatic tissues. This prodrug strategy was applied to the monophosphate of the well-known cytotoxic nucleoside cytosine-1-beta-D-arabinofuranoside (cytarabine, araC). Compound 19S (MB07133), in mice, achieves good liver targeting compared to araC, generating > 19-fold higher cytarabine triphosphate (araCTP) levels in the liver than levels of araC in the plasma and > 12-fold higher araCTP levels in the liver than in the bone marrow, representing a > 120-fold and > 28-fold improvement, respectively, over araC administration.
Synthesis and Characterization of a Novel Liver-Targeted Prodrug of Cytosine-1-β-d-arabinofuranoside Monophosphate for the Treatment of Hepatocellular Carcinoma
摘要:
Cytotoxic nucleosides have proven to be ineffective for the treatment of hepatocellular carcinoma (HCC) due, in part, to their inadequate conversion to their active nucleoside triphosphates (NTP) in the liver tumor and high conversion in other tissues. These characteristics lead to poor efficacy, high toxicity, and a drug class associated with an unacceptable therapeutic index. Cyclic 1-aryl-1,3-propanyl phosphate prodrugs selectively release the monophosphate of a nucleoside (NMP) into CYP3A4-expressing cells, such as hepatocytes, while leaving the prodrug intact in plasma and extrahepatic tissues. This prodrug strategy was applied to the monophosphate of the well-known cytotoxic nucleoside cytosine-1-beta-D-arabinofuranoside (cytarabine, araC). Compound 19S (MB07133), in mice, achieves good liver targeting compared to araC, generating > 19-fold higher cytarabine triphosphate (araCTP) levels in the liver than levels of araC in the plasma and > 12-fold higher araCTP levels in the liver than in the bone marrow, representing a > 120-fold and > 28-fold improvement, respectively, over araC administration.
Combination of FBPase inhibitors and insulin sensitizers for the treatment of diabetes
申请人:Metabasis Therapeutics, Inc.
公开号:US06756360B1
公开(公告)日:2004-06-29
Pharmaceutical compositions containing an FBPase inhibitor and an insulin sensitizer are provided as well as methods for treating diabetes and diseases responding to increased glycemic control, an improvement in insulin sensitivity, a reduction in insulin levels, or an enhancement of insulin secretion.
Combination of FBPase inhibitors and antidiabetic agents useful for the treatment of diabetes
申请人:——
公开号:US20030073728A1
公开(公告)日:2003-04-17
A combination therapy of at least one FBPase inhibitor and at least one other antidiabetic agent is disclosed.
揭示了至少一种FBPase抑制剂和至少一种其他抗糖尿病药物的联合治疗。
Novel 2'-C-methyl nucleoside derivatives
申请人:Reddy Raja K.
公开号:US20050182252A1
公开(公告)日:2005-08-18
Compounds of Formula I, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral infection are described:
[EN] NOVEL CYCLIC PHOSPHATE DIESTERS OF 1,3-PROPANE-1-ARYL DIOLS AND THEIR USE IN PREPARING PRODRUGS<br/>[FR] NOUVEAUX DIESTERS PHOSPHORIQUES CYCLIQUES DE DIOLS DE 1,3-PROPANE-1-ARYLIQUES ET LEUR UTILISATION POUR LA PREPARATION DE PROMEDICAMENTS
申请人:METABASIS THERAPEUTICS INC
公开号:WO2004041834A2
公开(公告)日:2004-05-21
Compounds of Formula (I), their preparation and synthetic intermediates, and their use in the synthesis of prodrugs; wherein: V and L are trans relative to one another; V is selected from group consisting of carbocyclic aryl, substituted carbocyclic aryl, heteroaryl, and substituted heteroaryl; and L is a leaving group selected from the group consisting of halogen, alkyl sulfonate, aryloxy optionally substituted with 1-2 substituents, N-containing heteroaryl, and N-hydroxy-nitrogen containing heteroaryl; and salts thereof.