From Celecoxib to a Novel Class of Phosphodiesterase 5 Inhibitors: Trisubstituted Pyrazolines as Novel Phosphodiesterase 5 Inhibitors with Extremely High Potency and Phosphodiesterase Isozyme Selectivity
作者:Mohammad Abdel-Halim、Sara Sigler、Nora A. S. Racheed、Amr Hefnawy、Reem K. Fathalla、Mennatallah A. Hammam、Ahmed Maher、Yulia Maxuitenko、Adam B. Keeton、Rolf W. Hartmann、Matthias Engel、Gary A. Piazza、Ashraf H. Abadi
DOI:10.1021/acs.jmedchem.0c01120
日期:2021.4.22
trisubstituted pyrazoline scaffold derived from the COX2 inhibitor, celecoxib, was used to develop novel PDE5 inhibitors. Novel pyrazolines were identified with potent PDE5 inhibitory activity lacking COX2 inhibitory activity. Compound d12 was the most potent with an IC50 of 1 nM, which was three times more potent than sildenafil and more selective with a selectivity index of >10,000-fold against all other PDE
17BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1 INHIBITORS FOR THE TREATMENT OF HORMONE-RELATED DISEASES
申请人:Hartmann Rolf
公开号:US20110046147A1
公开(公告)日:2011-02-24
The invention relates to 17beta-hydroxysteroid dehydrogenase type 1 (17betaHSD1) inhibitors, the preparation thereof and the use thereof for the treatment and prophylaxis of hormone-related, especially estrogen-related or androgen-related, diseases.
Discovery of Fluorescent Cyanopyridine and Deazalumazine Dyes Using Small Molecule Macroarrays
作者:Matthew D. Bowman、Megan M. Jacobson、Helen E. Blackwell
DOI:10.1021/ol0602708
日期:2006.4.1
[structure: see text] Smallmolecule macroarrays of cyanopyridines and deazalumazines were generated in high purities via spatially addressed synthesis on planar cellulose supports. Examination of the spectral properties of the heterocycles both on and off of the planar support revealed a set of promising new fluorescentdyes that exhibit high quantum yields, low pH dependence, and high sensitivity
Design, synthesis and biological evaluation of bis(hydroxyphenyl) azoles as potent and selective non-steroidal inhibitors of 17β-hydroxysteroid dehydrogenase type 1 (17β-HSD1) for the treatment of estrogen-dependent diseases
The combination of a ligand- and a structure-based drug design approach led to the identification of bis(hydroxyphenyl) azoles as potential inhibitors of 17beta-HSD1. Different azoles and hydroxy substitution patterns were investigated. The compounds were evaluated for activity and selectivity with regard to 17beta-HSD2, ERalpha and ERbeta. The most potent compound is 3-[5-(4-hydroxyphenyl)-1,3-oxazol-2-yl]phenol
Following model studies, the synthesis of (±)-picropodophyllone was completed by first cyclopropanating the appropriate chalcone (11) with ethoxycarbonyl dimethylsulphonium methylide. Treatment of the resulting cyclopropyl ketone with stannic chloride in either benzene or methylene chloride failed but in nitromethane the tetralone (1Oa) was formed. The lactose ring was completed using formaldehyde