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    • Romo, Daniel; Liu, Jun; Choi, Nam Song; Shi, Zonggao (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2007-06-12)
      The present invention provides a compound of Formula I, all of its related stereoisomers, and their pharmaceutically acceptable salts, wherein A—B, K, Q, X, Y, Z, R and R1 are as defined in Claim 1. The present invention ...