definiens: means any analogs or derivative compoWlds based on the activity or structure of Tyrphostins . Such option shall be exercisable in the following manner : UTMDACC will promptly notify LICENSEE of any Improvements that are disclosed to it ' > Office of Tectmology Commercialization . LICENSEE shall have three ( 3 ) months from such disclosure to notify UTMDACC of its desire to ~nter into such a license agreement, and a license agreement shal1 be negotiated in good faith within a period not to exceed six ( 6 ) months from LICENSEE 's notification to UTMDACC of its desire to enter into a license agreement, or such period of time as to whieh the parties shall mutually agree . UTMDACC agrees that any license negotiated for Improvements will contain appropriate royalty stacking language which will prevent UfMDACC from receiving a royalty pursuant to both this AGREEMENT and any negotiated license for the Improvement s