4-Piperazinothieno[2,3-D] Pyrimidine Compounds As Platelet Aggregation Inhibitors

摘要

Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I: (I) wherein A¹, A², A³, A⁴, A⁵, A⁶, A⁷, A⁸, X⁴, X⁶, R^2a, R^x, R⁴, R⁵, and R⁶ are as defined in the detailed description of the invention. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.