149656-26-8Relevant academic research and scientific papers
A Highly Stereoselective Glycosylation of 2-(Phenylselenenyl)-2,3-dideoxyribose Derivative with Thymine: Synthesis of 3'-Deoxy-2',3'-didehydrothymidine and 3'-Deoxythymidine
Chu, Chung K.,Babu, J. Ramesh,Beach, J. Warren,Ahn, Soon K.,Huang, Haoqiang,et al.
, p. 1418 - 1420 (1990)
A highly stereoselective synthesis of 3'-deoxy-2',3'-didehydrothymidine (D4T) and 3'-deoxythymidine (D2T) was achieved from the condensation of 2-(phenylselenenyl)-2,3-dideoxyribose derivative and silylated thymine in the presence of trimethylsilyl triflate.
Synthesis and biological properties of the four optical isomers of 5-o- carboranyl-2',3'-didehydro-2',3'-dideoxyuridine
Graciet, Jean-Christophe G.,Shi, Junxing,Schinazi, Raymond F.
, p. 711 - 727 (2007/10/03)
The four isomers of the 5-o-carboranyl-2',3'-didehydro-2',3'- dideoxyuridine (d4CU) were synthesized and their antiviral activity and cytotoxicity in normal and cancer human cells determined. Coupling of silylated 5-o-carboranyluracil with the protected D/L 2,3-dideoxy-2- phenylselenenylribosylacetates provided after oxidative elimination and deprotection, the desired compounds. The presence of the electron deficient 5-o-carboranyl moiety on uracil influenced the yield of the various isomers. In general, the compounds demonstrated weak anti-human immunodeficiency virus activity in primary human lymphocytes. No marked difference in the biological profile was noted for the various optical isomers, suggesting that the high lipophilicity of these nucleosides imparted by the carboranyl moiety overrides stereochemical considerations in the 2',3'-didehydro-2',3'- dideoxyaglycon moiety.
A Highly Stereoselective Synthesis of Anti-HIV 2',3'-Dideoxy- and 2',3'-Didehydro-2',3'-dideoxynucleosides
Beach, J. Warren,Kim, Hea O.,Jeong, Lak S.,Nampalli, Satyanarayana,Islam, Qamrul,et al.
, p. 3887 - 3894 (2007/10/02)
A general total synthesic method for the stereocontrolled synthesis of 2',3'-dideoxy- as well as 2',3'-didehydro-2',3'-dideoxynucleosides is presented.Introduction of an α-phenylselenenyl group at the 2-position of 2,3-dideoxyribosyl acetate directs the glycosyl bond formation to give >/=95percent β-isomer.This 2'-phenylselenenyl nucleoside may be converted to either the 2',3'-dideoxynucleoside by treatment with n-Bu3SnH and Et3B at room temperature or to the unsaturated derivative by treatment with H2O2/cat. pyridine.The application of this method to the syntheses of pyrimidines (ddU, ddT, ddC), 6-substituted purines (ddA, ddI, 6-chloro-ddP, N6-Me-ddA), and 2,6-disubstituted purines (2-F-ddA, 6-chloro-2-amino-ddP) as well as selected 2',3'-didehydro-2',3'-dideoxy derivatives is reported.
