Design and Synthesis of LM146, a Potent Inhibitor of PB1 with an Improved Selectivity Profile over SMARCA2 was written by Melin, Lea;Gesner, Emily;Attwell, Sarah;Kharenko, Olesya A.;van der Horst, Edward H.;Hansen, Henrik C.;Gagnon, Alexandre. And the article was included in ACS Omega in 2021.Name: 6-Chloro-2-aminobenzamide This article mentions the following:
PB1 is a bromodomain-containing protein hypothesized to act as the nucleosome-recognition subunit of the PBAF complex. Although PB1 is a key component of the PBAF chromatin remodeling complex, its exact role has not been elucidated due to the lack of potent and selective inhibitors. Chem. probes that target specific bromodomains within the complex would constitute highly valuable tools to characterize the function and therapeutic pertinence of PB1 and of each of its bromodomains. Here, we report the design and synthesis of lead compound LM146, which displays strong stabilization of the second and fifth bromodomains of PB1 as shown by DSF. LM146 does not interact with bromodomains outside of sub-family VIII and binds to PB1(2), PB1(5), and SMARCA2B with KD values of 110, 61, and 2100 nM, resp., providing a ~34-fold selectivity profile for PB1(5) over SMARCA2. In the experiment, the researchers used many compounds, for example, 6-Chloro-2-aminobenzamide (cas: 54166-95-9Name: 6-Chloro-2-aminobenzamide).
6-Chloro-2-aminobenzamide (cas: 54166-95-9) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. Amides can be recrystallised from large quantities of water, ethanol, ethanol/ether, aqueous ethanol, chloroform/toluene, chloroform or acetic acid. The likely impurities are the parent acids or the alkyl esters from which they have been made. The former can be removed by thorough washing with aqueous ammonia followed by recrystallisation, whereas elimination of the latter is by trituration or recrystallisation from an organic solvent.Name: 6-Chloro-2-aminobenzamide
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics