definiens: means with respec t to compounds within the Markush structures set forth on Exhibit A, the claims of ( i ) any patent or patent application listed on Exhibit A ( but specif ically excluding claims to the extent related to compounds within the Markush structures set forth on Exhibit B and all other compound structures not set forth on Exhibit A ), ( ii ) any patents or patent applications which a re entitled to claim priority from the patents or patent applicati ons listed on Exhibit A, or ( iii ) any patents and p atent applications which claim priority from one or more of the U.S. provisional applications from which * * * claims priority, which are entitled to claim the priority of the patent applications listed on Exhibit A, but in each of the foregoing instances, specifically excluding any New Technology or Improvements . For the avoidance of d oubt, if a compound is encompassed by both Exhibit B and Exhibit A, then the compound shall be deemed an Exhibit B compound only, and is not within the Phen omix Licensed Patent Rights