[EN] 6-HETEROARYLOXY BENZIMIDAZOLES AND AZABENZIMIDAZOLES AS JAK2 INHIBITORS<br/>[FR] 6-HÉTÉROARYLOXY BENZIMIDAZOLES ET AZABENZIMIDAZOLES EN TANT QU'INHIBITEURS DE JAK2
申请人:AJAX THERAPEUTICS INC
公开号:WO2021226261A1
公开(公告)日:2021-11-11
The present disclosure provides 6-heteroaryloxy benzimidazole and azabenzimidazole compounds and compositions thereof useful for inhibiting JAK2.
Design and synthesis of selective CYP1B1 inhibitor via dearomatization of α-naphthoflavone
作者:Makoto Kubo、Keiko Yamamoto、Toshimasa Itoh
DOI:10.1016/j.bmc.2018.11.045
日期:2019.1
Selective cytochrome P450 (CYP) 1B1 inhibition has potential as an anticancer strategy that is unrepresented in the current clinical arena. For development of a selective inhibitor, we focused on the complexity caused by sp(3)-hybridized carbons and synthesized a series of benzo[h] chromone derivatives linked to a non-aromatic B-ring using alpha-naphthoflavone (ANF) as the lead compound. Ring structure comparison suggested compound 37 as a suitable cyclohexyl-core with improved solubility. Structural evolution of 37 produced the azide-containing cis-49a, which had good properties in three important respects: (1) selectivity for CYP1B1 over CYP1A1 and CYP1A2 (120-times and 150-times, respectively), (2) greater inhibitory potency of > 2 times that of ANF, and (3) improved solubility. The corresponding aromatic B-ring compound 59a showed low selectivity and poor solubility. To elucidate the binding mode, we performed X-ray crystal structure analysis, which revealed the interaction mode and explained the subtype selectivity of cis-49a.