84472-90-2Relevant articles and documents
Synthesis and antileukemic activity of chymotrygsin-activated derivatives of 3'-amino-2',3'-dideoxycytidine. (Synthetic nucleosides and nucleotides. XXXIII
Kawaguchi,Sakairi,Kimura,Yamaguchi,Saneyoshi
, p. 501 - 504 (2007/10/02)
3'-Amino-2',3'-dideoxycytidine (8) was directly synthesized from 2'-deoxycytidine, 2',3'-Dideoxy-3'-(N-acyl-L-phenylalanylamino)cytidines (acyl =butoxycarbonyl (9a), acetyl (9b), benzoyl (9c), and α-hexanoyl (9d)) were synthesized as chymotrypsin-activated prodrugs of 8. This N-protection was required for activation by chymotrypsin to 8. In vitro, compound 8 showed high cytotoxic activity against P388 cells, but the prodrugs 9a-d were ineffective. In vitro, however, these prodrugs showed much higher activity than 8 in mice bearing P388 cells.
A facile procedure for the reduction of azido nucleosides to amines using polymer bound triphenylphosphine
Holletz,Cech
, p. 789 - 791 (2007/10/02)
A very convenient reduction of azido nucleosides to amines under mild conditions using polystyryl diphenylphosphine resin is described. The method requires only a filtration and evaporation process for product isolation.
3'-Amino-2',3'-dideoxyribonucleosides of some pyrimidines: Synthesis and biological activities
Krenitsky,Freeman,Shaver,Beacham III,Hurlbert,Cohn,Elwell,Selway
, p. 891 - 895 (2007/10/02)
3'-Amino-2',3'-dideoxyribonucleosides of thymine, uracil, and 5-iodouracil (1-3) were synthesized from the corresponding 2'-deoxyribonucleosides via the threo-3'-chloro and the erythro-3'-azido derivatives. Corresponding aminonucleosides of 5-bromouracil, 5-chlorouracil, and 5-fluorouracil (4-6) were synthesized enzymatically with 3'-amino-2',3'-dideoxythymidine as the aminopentosyl donor and thymidine phosphorylase (EC 2.4.2.4) as the catalyst. 3'-Amino-2',3'-dideoxycytidine (7) was synthesized by amination of the 3'-azido precursor of 3'-amino-2',3'-dideoxyuridine. The biological activity of 3'-amino-2',3'-dideoxy-5-fluorouridine (6) was notable among this group of aminonucleosides. It had an ED50 of 10 μM against adenovirus and was not appreciably cytotoxic to mammalian cells in culture. It also had activity against some Gram-positive bacteria but not against a variety of Gram-negative bacteria. The other aminonucleosides (1-5 and 7) lacked or exhibited weak antiviral and antibacterial activities. The only compounds in this group that were appreciably toxic to mammalian cells in culture were the thymidine and deoxycytidine analogues (1 and 7).