Synthesis of Pyrazole, Isoxazole, and Aminopyrimidine Ring-Fused Benzothiocycloheptane-Derived Oxazolidinones and Their Corresponding Sulfone Derivatives - Khlebnikov, Vladimir; Maiti, Samarendra N; Prasad, J V N Vara; Boyer, Frederick E; Stier, Mike (Synthesis, 2007)