Method of preparing inhibitors of phosphodiesterase-4
申请人:——
公开号:US20040102472A1
公开(公告)日:2004-05-27
In one aspect, the present invention is directed to a one pot method of preparing intermediates of Formula V, which are useful in making inhibitors of phosphodiesterase-4:
1
The present invention is also directed to a method of preparing phosphodiesterase inhibitors comprising the Formula
2
Antibacterials having formula (I)
1
and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates used in the processes, compositions containing the compounds, and methods of prophylaxis and treatment of bacterial infections using the compounds are disclosed.
[EN] 4-OXO-1-(3-SUBSTITUTED PHENYL-1,4-DIHYDRO-1,8-NAPHTHYRIDINE-3-CARBOXAMIDE PHOSPHODIESTERASE-4 INHIBITORS<br/>[FR] 4-OXO-1-(PHENYL-1,4-DIHYDRO-1,8-NAPTHYRIDINE-3-CARBOXAMIDE, A SUBSTITUTION EN 3, UTILES COMME INHIBITEURS DE PHOSPHODIESTERASE-4
申请人:MERCK FROSST CANADA INC
公开号:WO2004048374A1
公开(公告)日:2004-06-10
Compounds represented by Formula (I):or a pharmaceutically acceptable salt thereof, are phosphodiesterase 4 inhibitors useful in the treatment of asthma and inflammation and useful for the enhancement of cognition.
[EN] STABLE CRYSTAL OF 4-OXOQUINOLINE COMPOUND<br/>[FR] CRISTAL STABLE DE COMPOSE 4-OXOQUINOLINE
申请人:JAPAN TOBACCO INC
公开号:WO2005113508A1
公开(公告)日:2005-12-01
The present invention provides a crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which shows a particular powder X-ray diffraction pattern of a characteristic diffraction peaks at diffraction angles 2θ (°) as measured by powder X-ray diffractometry. The crystal of the present invention is superior in physical and chemical stability.
The direct chemical conversion of peptides to β-lactams
作者:M.J. Miller、P.G. Mattingly
DOI:10.1016/s0040-4020(01)92149-0
日期:1983.1
Appropriately protected seryldipeptides which have a relatively acidic proton (H1 of 1) on the α' C can be efficiently converted to β-lactams by reaction with azodicarboxylates and triphenylphosphine. Application of the same reaction conditions to serylamides which lack an acidic α' proton provided dehydropeptides as the major product. Model reactions and potential intermediates which rationalize these