AGREEMENT AND PLAN OF MERGER BY AND AMONG VIRIUM PHARMACEUTICALS INC., REIT AMERICAS, INC., VIRIUM PHARMACEUTICALS, INC. (DELAWARE) AND VIRIUM MERGER SUB, INC. DATED AS OF MAY 25, 2007Merger Agreement • June 1st, 2007 • Reit Americas, Inc. • Real estate investment trusts • New York
