[EN] COMPOSITIONS AND METHODS OF MODULATING SHORT-CHAIN DEHYDROGENASE ACTIVITY [FR] COMPOSITIONS ET PROCÉDÉS POUR MODULER L'ACTIVITÉ DE LA DÉSHYDROGÉNASE À CHAÎNE COURTE
[EN] TETRAZOLE AND OXADIAZOLONE SUBSTITUTED beta-AMINO ACID DERIVATIVES<br/>[FR] DERIVES DE beta-AMINOACIDES SUBSTITUES PAR TETRAZOLE ET OXADIAZOLONE
申请人:WARNER LAMBERT CO
公开号:WO2004078734A1
公开(公告)日:2004-09-16
This invention relates to novel tetrazole and oxadiazalone β-amino acids derivatives of the formula (I, II), wherein G is (III, IV) wherein R1 through R4 are defined as in the specification, pharmaceutical compositions containing them and their use for the treatment of various central nervous system and other disorders. The cyclopropyl β-amino acids derivatives of this invention exhibit activity as alpha2delta ligands (α2δ ligands). Such compounds have affinity for the α2δ subunit of a calcium channel.
Condensation of carbonyl derivatives 2 with active methylene compounds 1 is efficiently achieved, within 3 to 15 minutes under microwave irradiation by a solvent free reaction in the presence of carefully adjusted amounts of piperidine leading to Knoevenagel products 3 in good to excellent yields.
Knoevenagel and Wittig-Horner reactions in solid-liquid systems, with magnesium oxide or zinc oxide as catalyst. When Wittig-Horner reaction is competitive with Knoevenagel reaction, the catalyst can be modified to give a highly selective reaction ; the addition of dimethylsulfoxide on MgO or heiamethylphosphoric triamide on ZnO gives more efficient catalysts for the Wittig-Homer reaction. The addition of a small
2-Metallo-2-nitropropanes as isopropylidene transfer reagents for the cyclopropanation of electrophilic alkenes. Application to the synthesis of trans-chrysanthemic acid
作者:A. Krief、L. Hevesi、G. Chaboteaux、P. Mathy、M. Sevrin、M. J. De Vos
DOI:10.1039/c39850001693
日期:——
2-Metallo-2-nitropropanes have been successfully used for the cyclopropanation of electrophilicalkenes and act as isopropylidenetransferreagents.
2-金属-2-硝基丙烷已成功用于亲电子烯烃的环丙烷化反应,并用作异亚丙基转移试剂。
Method of treating tinnitus
申请人:——
公开号:US20030176504A1
公开(公告)日:2003-09-18
The invention relates to a method of treating tinnitus by administering an alpha2delta ligand such as, for example, a compound of Formula
1
and pharmaceutically acceptable salts thereof, wherein R
1
is hydrogen or straight or branched lower alkyl, and n is an integer of from 4 to 6.