90074-90-1Relevant articles and documents
Synthesis, SAR studies, and evaluation of 1,4-benzoxazepine derivatives as selective 5-HT1A receptor agonists with neuroprotective effect: Discovery of Piclozotan
Kamei, Katsuhide,Maeda, Noriko,Nomura, Kayoko,Shibata, Makoto,Katsuragi-Ogino, Ryoko,Koyama, Makoto,Nakajima, Mika,Inoue, Teruyoshi,Ohno, Tomochika,Tatsuoka, Toshio
, p. 1978 - 1992 (2007/10/03)
A new series of 1,4-benzoxazepine derivatives was designed, synthesized, and evaluated for binding to 5-HT1A receptor and cerebral anti-ischemic effect. A lot of compounds exhibited nanomolar affinity for 5-HT1A receptor with good selectivity over both dopamine D 2 and α1-adrenergic receptors. Among these compounds, 3-chloro-4-[4-[4-(2-pyridinyl)-1,2,3,6-tetrahydropyridin-1-yl]butyl]- 1, 4-benzoxazepin-5(4H)-one (50: SUN N4057 (Piclozotan) as 2HCl salt) showed remarkable neuroprotective activity in a transient middle cerebral artery occlusion (t-MCAO) model.
Use of Phosphorus Pentoxide. Preparation of Half-esters through Selective Esterification
Banerjee, Amalendu,Adak, Mohini Mohan,Das, Sankar,Banerjee, Santa,Sengupta, Saumitra
, p. 34 - 37 (2007/10/02)
Methyl 2-,3-,4-carboxyphenylacetate and methyl 2-,3-,4-carboxyphenoxyacetate have been prepared through selective esterification of the aliphatic carboxylic acid function of the corresponding dicarboxylic acids using a mixture of phosphorus pentoxide (1 part), anhydrous copper sulphate (5 parts) and anhydrous sodium sulphate (5 parts).All the isomeric half-esters have been prepared through partial hydrolysis of the corresponding dimethylesters.
