Martin Allan

N-Benzyl-1-heteroaryl-3-(trifluoromethyl)-1H-pyrazole-5-carboxamides as inhibitors of co-activator associated arginine methyltransferase 1 (CARM1).

A series of N-benzyl-1-heteroaryl-3-(trifluoromethyl)-1H-pyrazole-5-carboxamides targeting co-activator associated arginine methyltransferase 1 (CARM1) have been designed and synthesized. The potency of these inhibitors was influenced by the nature of the heteroaryl fragment with the thiophene analogues being superior to thiazole, pyridine, isoindoline and benzofuran based inhibitors.

1,2-Diamines as inhibitors of co-activator associated arginine methyltransferase 1 (CARM1).

We have identified the N(1)-benzyl-N(2)-methylethane-1,2-diamine unit as a substitute for the (S)-alanine benzylamide moiety for the design of co-activator associated arginine methyltransferase 1 (CARM1) inhibitors. The potency of these inhibitors is in the same order of magnitude as their predecessors and their clearance, volume of distribution, and half lives were greatly improved.

Sulfamides as novel histone deacetylase inhibitors

The sulfamide moiety has been utilized to design novel HDAC inhibitors. The potency and selectivity of these inhibitors were influenced both by the nature of the scaffold, and the capping group. Linear long-chain-based analogs were primarily HDAC6-selective, while analogs based on the lysine scaffold resulted in potent HDAC1 and HDAC6 inhibitors.

Synthesis and evaluation of lysine derived sulfamides as histone deacetylase inhibitors

We have recently reported on a novel class of histone deacetylase (HDAC) inhibitors bearing a sulfamide group as the zinc-binding unit. Herein, we report on the synthesis of sulfamide based inhibitors designed around a lysine scaffold and their structure-activity relationships against HDAC1 and HDAC6 isotypes as well as 293T cells. Our efforts led us to an improvement of the originally disclosed lysine-based sulfamide, 2a to compound 12h which has equal potency in enzyme and cell-based assays as well as enhanced metabolic stability and PK profile.