| abstract |
A macrocyclic compound having the structure of Formula (A), wherein each of R1 and R2 is independently (i) a 5-6 membered monocyclic aromatic ring containing 0-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or (ii) an 8-10 membered bicyclic aromatic ring containing 0-6 heteroatoms independently selected from nitrogen, oxygen, or sulfur. Each R1 and R2 may independently be substituted by 0, 1, 2, 3, or 4 substituents. Z1 |