Sentence examples for unprecedented ring from inspiring English sources

Amid heightened concern about the possibility of terrorists targeting the Sochi Winter Olympics, which will be protected by an unprecedented "ring of steel" by Russian police, the army and security forces, several European Olympic federations received "suspicious" messages.

The study, organized by the World Health Organization in a consortium with many other agencies, used an unprecedented ring vaccination design, in which the contacts of new Ebola cases as well as the contacts of contacts were vaccinated.

Structure-based design led to the discovery of a novel class of renin inhibitors in which an unprecedented phenyl ring filling the S1 site is attached to the phenyl ring filling the S3 pocket.

-Evodiakine (1a and 1b), a pair of rearranged rutaecarpine-type alkaloids with an unprecedented 6/5/5/7/6 ring system, were isolated from the nearly ripe fruits of Evodia rutaecarpa.

By comparison with known rutaecarpine-type alkaloids, compound -1 was regarded as a rearranged rutaecarpine-type alkaloid with an unprecedented 6/5/5/7/6 ring system.

Should the Patriots win at Denver, Brady would have a chance to win an unprecedented fifth ring in the Bay Area, the place where he was raised.

The cyclization of 3-silyloxy-1,5-enyne 256 followed by semipinacol rearrangement was used to construct the hexahydro-1 H-inden-4(2 H -one core of -sieboldine A (259), wH -oneontains an unprecorented N-hydrofyazacyclononane ring (Scheme 77).

Finally, alongside some mechanistic observations and the exploration of equivalent reactions of ynhydrazides, the formation of an unprecedented 7,4-fused ring enamide 8 by a formal 4- endo-trig cyclization is described.[ 10] A prerequisite for the realization of these processes was the synthesis of ynamides featuring a bromoalkene substituent.

She has inherited a clunker of a car, held down a part-time job for an unprecedented four months ringing up groceries at a supermarket 25 miles away.

She added reaction to the duke and duchess' firstborn was likely to be unprecedented: "The bells rang across Britain when Queen Victoria had her son, the future Edward VII.

New homogeneous olefin metathesis catalysts based on high oxidation state transition metals have opened new opportunities in polymer synthesis by providing unprecedented control in ring-opening polymerization of cyclic alkenes.