用于心力衰竭的一类新型治疗药物,高效和选择性的GRK2抑制剂,在体外研究中表现出增强的β-肾上腺素信号传导能力。HTS将衍生物5和1,2,4-三唑衍生物24a鉴定为命中化合物。新一代的脚手架和所有部分的SAR研究都产生了带有N-苄基羧酰胺部分的4-甲基-1,2,4-三唑衍生物,对GRK2的活性很高,对其他激酶的选择性更高。在亚型选择性方面,这些化合物对GRK1、5、6和7表现出足够的选择性,并且对GRK3具有几乎相同的抑制作用。我们的药物化学努力导致发现了115h(GRK2 IC 50= 18 nM),获得了与人GRK2和GRK2抑制剂的共晶体结构,该抑制剂增强了β-肾上腺素能受体(βAR)介导的cAMP积累,并防止了用异丙肾上腺素处理过的表达β2AR的HEK293细胞中βAR的内在化。因此,115h似乎是心力衰竭治疗的一种新型疗法。
Dioxygen-Promoted Pd-Catalyzed Aminocarbonylation of Organoboronic Acids with Amines and CO: A Direct Approach to Tertiary Amides
作者:Long Ren、Xinwei Li、Ning Jiao
DOI:10.1021/acs.orglett.6b02913
日期:2016.11.18
A direct approach from organoboronic acids and amines to tertiary amides via Pd-catalyzed aerobic aminocarbonylation has been developed. The presence of O2 significantly promotes the efficiency of this transformation. This method uses commercially available organoboronic acids and cheap CO and O2 (1 atm), which renders amides an easy synthesis with broad substrate scope and high functional group tolerance
Compounds of formula (I), and pharmaceutically acceptable salts thereof, may be used in therapy, for example as antifungal agents: (I) wherein: R1, R2, R3, R4, R5, R6, R7, X and X
1
are as defined herein. Certain compounds of formula (I) are also provided. Compounds of formula (T), and agriculturally acceptable salts thereof, may also be used as agricultural fungicides.
Compounds of formula (I), and pharmaceutically acceptable salts thereof, may be used in therapy, for example as antifungal agents: (I) wherein: R1, R2, R3, R4, R5, R6, R7, X and X1 are as defined herein. Certain compounds of formula (I) are also provided. Compounds of formula (T), and agriculturally acceptable salts thereof, may also be used as agricultural fungicides.