Discovery of triazolopyrimidine-based PDE8B inhibitors: Exceptionally ligand-efficient and lipophilic ligand-efficient compounds for the treatment of diabetes
摘要:
PDE8B is a cAMP-specific isoform of the broader class of phosphodiesterases (PDEs). As no selective PDE8B inhibitors had been reported, a high throughput screen was run with the goal of identifying selective tools for exploring the potential therapeutic utility of PDE8B inhibition. Of the numerous hits, one was particularly attractive since it was amenable to rapid deconstruction leading to inhibitors with very high ligand efficiency (LE) and lipophilic ligand efficiency (LLE). These triazolopyrimidines were optimized for potency, selectivity and ADME properties ultimately leading to compound 42. This compound was highly potent and selective with good bioavailability and advanced into pre-clinical development. (C) 2012 Elsevier Ltd. All rights reserved.
DOI:
10.1016/j.bmcl.2012.06.079
作为产物:
描述:
4,6-二氯-2-环丙基-5-硝基嘧啶 在
镍二氯甲烷 、 环己烷 作用下,
以
乙醇 为溶剂,
25.0 ℃
、1333.22 MPa
条件下,
反应 6.0h,
以41 g of 2-cyclopropyl-4,6-dichloro-5-amino-pyrimidine is obtained的产率得到5-amino-2-cyclopropyl-4,6-dichloropyrimidine
The present invention is directed to certain aminopyrimidines of the general formula ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are hydrogen, halogen, alkoxy, alkylthio, or alkyl having 1 to 4 carbon atoms, or cycloalkyl having 3 to 5 carbon atoms and R.sup.4 is hydrogen or an aliphatic or aromatic acyl group, as well as physiologically compatible acid addition salts thereof. Compounds of the present invention are useful as blood pressure lowering agents and in the treatment of glaucoma.
[EN] SUBSTITUTED TRIAZOLOPYRIMIDINES AS PDE8 INHIBITORS<br/>[FR] TRIAZOLOPYRIMIDINES SUBSTITUÉES COMME INHIBITEURS DE PDE8
申请人:PFIZER
公开号:WO2011058478A1
公开(公告)日:2011-05-19
Compounds of Formula (I): wherein R1 , R2, R3, R4, and R5 are as defined herein, are disclosed.
式(I)的化合物:其中R1,R2,R3,R4和R5如本文所定义,已被披露。
US4323570A
申请人:——
公开号:US4323570A
公开(公告)日:1982-04-06
Discovery of triazolopyrimidine-based PDE8B inhibitors: Exceptionally ligand-efficient and lipophilic ligand-efficient compounds for the treatment of diabetes
作者:Michael P. DeNinno、Stephen W. Wright、John B. Etienne、Thanh V. Olson、Benjamin N. Rocke、Jeffrey W. Corbett、Daniel W. Kung、Kenneth J. DiRico、Kim M. Andrews、Michele L. Millham、Janice C. Parker、William Esler、Maria van Volkenburg、David D. Boyer、Karen L. Houseknecht、Shawn D. Doran
DOI:10.1016/j.bmcl.2012.06.079
日期:2012.9
PDE8B is a cAMP-specific isoform of the broader class of phosphodiesterases (PDEs). As no selective PDE8B inhibitors had been reported, a high throughput screen was run with the goal of identifying selective tools for exploring the potential therapeutic utility of PDE8B inhibition. Of the numerous hits, one was particularly attractive since it was amenable to rapid deconstruction leading to inhibitors with very high ligand efficiency (LE) and lipophilic ligand efficiency (LLE). These triazolopyrimidines were optimized for potency, selectivity and ADME properties ultimately leading to compound 42. This compound was highly potent and selective with good bioavailability and advanced into pre-clinical development. (C) 2012 Elsevier Ltd. All rights reserved.