Characteristic and complementary chiral recognition ability of four recently developed immobilized chiral stationary phases based on amylose and cellulose phenyl carbamates and benzoates
various immobilizedchiralstationaryphases (CSPs) have been developed. The immobilized CSPs have opened up possibilities not only maintaining the high chiral recognition abilities as well as corresponding coated ones but also affording high durability to various mobile phase. This report directed to investigate enantioseparation of recently launched four immobilized CSPs with cellulose and amylose
Process for the preparation of an antibacterial quinolone compound
申请人:Farmaprojects, S.A.
公开号:EP1939206A1
公开(公告)日:2008-07-02
It comprises a process for the preparation of levofloxacin based on a cyclisation reaction of a compound of formula (IV), which has the alcohol group protected, followed by a deprotection reaction and the conversion of the compound obtained to levofloxacin by a process comprising a hydrolysis reaction and a second cyclisation reaction. It also comprises new intermediates compounds.
PROCESS FOR THE PREPARATION OF AN ANTIBACTERIAL QUINOLONE COMPOUND
申请人:Puig Torres Salvador
公开号:US20100029938A1
公开(公告)日:2010-02-04
It comprises a process for the preparation of levofloxacin based on a cyclisation reaction of a compound of formula (IV), which has the alcohol group protected, followed by a deprotection reaction and the conversion of the compound obtained to levofloxacin by a process comprising a hydrolysis reaction and a second cyclisation reaction. It also comprises new intermediates compounds.
[EN] PROCESS FOR THE PREPARATION OF AN ANTIBACTERIAL QUINOLONE COMPOUND<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ DE QUINOLONE ANTIBACTÉRIEN
申请人:FARMAPROJECTS S A
公开号:WO2008077643A1
公开(公告)日:2008-07-03
[EN] It comprises a process for the preparation of levofloxacin based on a cyclisation reaction of a compound of formula (IV), which has the alcohol group protected, followed by a deprotection reaction and the conversion of the compound obtained to levofloxacin by a process comprising a hydrolysis reaction and a second cyclisation reaction. It also comprises new intermediates compounds. [FR] L'invention concerne un procédé de préparation de levofloxacine fondé sur une réaction de cyclisation d'un composé de formule (IV), dont le groupement alcool est protégé, suivie par une réaction de déprotection et la conversion du composé obtenu en levofloxacine par un procédé comprenant une réaction d'hydrolyse et une seconde réaction de cyclisation. L'invention concerne également de nouveaux composés intermédiaires.