definiens: means any compound that is an isomer, homolog, anal og or prodrug of the [COMPANY] Compound and that is made, identified or ch aracterized at any time by Licensee, [COMPANY], [COMPANY] o r Lilly ( to the extent to which [COMPANY] or [COMPANY] has ri ghts to such compounds made, identified or characte rized by Lilly ) . The term includes compounds of i d entical elemental composition ( empirical formulae ) and specifically encompassing chain, geometrical, stero chemical, keto - enol, optical and position isomerism . The term includes carbon compounds, conformi ng to the same general formula and in which each member differs from another by a constant linear in crement of the atomic groups – CH2- or – CH2 - CH2- . Th e term includes compounds which are structu rally closely related to the [COMPANY] Compound or a compound that is a bioisostere or a halogen, alcoho l, ester, ether or acid substituted variant of the [COMPANY] Compound