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Keywords:

  • antiviral agents;
  • carbocycles;
  • conformationally locked;
  • nucleosides;
  • pseudorotational cycles
Thumbnail image of graphical abstract

The inside cover picture shows the locked north (blue) and south (red) bicyclo[3.1.0]hexane nucleosides in the normal pseudorotational cycle, and the corresponding shift to a smaller cycle (nmax=7 °) caused by the insertion of a double bond. The former nucleosides are inactive, while the flattening of the embedded cyclopentene ring provides active compounds against HOS cells infected with HIV. For more details, see the Full Paper by V. E. Marquez et al. on p. 1354 ff.