Design, Synthesis, and Pharmacological Evaluation of <i>N</i>-Acylhydrazones and Novel Conformationally Constrained Compounds as Selective and Potent Orally Active Phosphodiesterase-4 Inhibitors
作者:Arthur E. Kümmerle、Martine Schmitt、Suzana V. S. Cardozo、Claire Lugnier、Pascal Villa、Alexandra B. Lopes、Nelilma C. Romeiro、Hélène Justiniano、Marco A. Martins、Carlos A. M. Fraga、Jean-Jacques Bourguignon、Eliezer J. Barreiro
DOI:10.1021/jm300514y
日期:2012.9.13
N-acylhydrazones (NAHs), the compound 8a was selected as a selective submicromolar phosphodiesterase-4 (PDE4) inhibitor associated with anti-TNF-α properties measured both in vitro and in vivo. The recognition pattern of compound 8a was elucidated through molecular modeling studies based on the knowledge of the 3D-structure of zardaverine, a PDE4 inhibitor resembling the structure of 8a, cocrystallized with
Synthesis of phthalazinones via palladium(ii)-catalysed intramolecular oxidative C–H/C–H cross-coupling of N′-methylenebenzohydrazides
作者:Takanori Matsuda、Yuki Tomaru、Yoshiya Matsuda
DOI:10.1039/c3ob40195b
日期:——
A palladium(II)-catalysed intramolecular oxidative C–H/C–H cross-coupling of N′-methylenebenzohydrazides to phthalazin-1(2H)-ones has been developed. This cyclization is believed to mechanistically proceed via electrophilic ortho-palladation and subsequent C-arylation of the carbon–nitrogen double bond.