New Neplanocin Analogues. 7. Synthesis and Antiviral Activity of 2-Halo Derivatives of Neplanocin A
作者:Takumi Obara、Satoshi Shuto、Yasuyoshi Saito、Robert Snoeck、Graciela Andrei、Jan Balzarini、Erik De Clercq、Akira Matsuda
DOI:10.1021/jm960145+
日期:1996.1.1
give the protected (6'R)-6'-C-methyl derivative 16b. Deprotection of these compounds afforded the target 2-halo derivatives of neplanocin A. Of these new compounds, 2-fluoroneplanocin A (1b) showed an antiviral potency and a spectrum that was comparable to that of neplanocin A (1a). It was particularly active against vaccinia virus, vesicular stomatitis virus, parainfluenza virus, reovirus, arenaviruses
2-Fluoro- and 2-chloroneplanocin A's (2 and 3) were synthesized as an adenosinedeaminase resistant-equivalent of neplanocin A, and evaluated for their antitumor and antiviral activities. Of these, 2 was completely resistant to adenosinedeaminase and showed more significant antitumor and antiviral activities than neplanocin A.