This invention relates to inhibitors of mitotic kinesins, particularly KSP, and methods for producing these inhibitors. The invention also provides pharmaceutical compositions comprising the inhibitors of the invention and methods of utilizing the inhibitors and pharmaceutical compositions in the treatment and prevention of various disorders.本發明關於有絲分裂驅動蛋白的抑制劑,特別是KSP,和關於製備這些抑制劑的方法。本發明也提供包括本發明抑制劑的藥學組成物,和使用這些抑制劑及藥學組成物治療和預防各種疾病的方法。