Doug - The covalent structure of CO1686 is quite different than 113. It would of considerable interest to most of us to get a comparative scientific analysis of the differential virtues of each if that is even possible at this stage of the game.
The whole nature of Clovis as a Company can be seen in the range of drugs they have trials for and in their web site.
The pop in their stock is also a function of the 16 million shares they have outstanding.