Disclosed herein is the use of HLM-008182, as well as its analogues formed via in-house synthesis, as a potent proteasome inhibitors. A new method was developed for HLM-008182 through a four-step protocol and the method was further optimized to a two step protocol. The synthesis in both protocols was regioselective with TiCl4. The reaction was highly efficient with microwave assisted heating and THF as solvent. The modification around the molecule HLM-008182 established primary SAR, indicating that the proteasome inhibition activity was a function of the 2-side chain.
Lawrence, Harshani; Ge, Yiyu; Sebti, Said M.; and Guida, Wayne, "Proteasome inhibitors having chymotrypsin-like activity" (2013). USF Patents. 223.
University of South Florida H. Lee Moffitt Cancer Center and Research Institute, Inc.