Their precursors, 2′-C-cyano nucleosides 5a,b and 6a,b, were obtained by subjecting 1a,b to the sequence of selective protection of the primary hydroxyl group, acetalation, oxidation, and finally treatment with sodium cyanide.
Figure 3 shows the sequence of dead-zone protection [4].
In addition, heuristic methods for calculating the sequence of incrementally installing protection links are presented.
However, in a video sequence, different video content in each part of the sequence may require different amounts of protection for the corresponding video data elements.
Open image in new window Fig. 5 Control and protection sequence of MTDC system.
Open image in new window Fig. 11 Control and protection sequence of MTDC system under AC fault during blocking failure of whole MMC-1.
Subjecting 2a c to the sequence of specific acetalation, selective protection of the primary hydroxyl group and oxidation, the 4′-ketonucleosides 6a c and 7c were obtained.
The control and protection sequence of the four-terminal MMC HVDC system under a permanent three-phase short-circuit fault at the MMC AC side of T1 is shown in Fig. 5.
One design, in particular, that had YscF fused to the downstream sequence of F1, produced better protection than separate F1 or YscF DNA vaccines, suggesting a potential synergistic effect between these two antigens.
While it was known that plants expressing virus-specific proteins showed enhanced tolerance or resistance to viral infection, it was not expected that plants carrying only short, non-coding regions of viral RNA sequences would show similar levels of protection.
