立体选择性地制备了5-(二乙氧基磷酰基)-5-甲基-4-苯基吡咯啉N-氧化物(4-PhDEPMPO t 8和4-PhDEPMPO c 9)的顺式和反式非对映异构体,并将其用作羟基和超氧化物自由基的自旋阱。由顺式立体异构体9与超氧化物自由基阴离子反应形成的自旋加合物显示8线ESR谱,仅显示减少的交替线宽现象。该光谱比DEPMPO-OOH的12线光谱更简单,DEPMPO-OOH的12线光谱表现出很强的交替线宽现象。4-PhDEPMPO c -OOH和DEPMPO-OOH加合物的半衰期相同:分别为14.5分钟和15.5分钟。
立体选择性地制备了5-(二乙氧基磷酰基)-5-甲基-4-苯基吡咯啉N-氧化物(4-PhDEPMPO t 8和4-PhDEPMPO c 9)的顺式和反式非对映异构体,并将其用作羟基和超氧化物自由基的自旋阱。由顺式立体异构体9与超氧化物自由基阴离子反应形成的自旋加合物显示8线ESR谱,仅显示减少的交替线宽现象。该光谱比DEPMPO-OOH的12线光谱更简单,DEPMPO-OOH的12线光谱表现出很强的交替线宽现象。4-PhDEPMPO c -OOH和DEPMPO-OOH加合物的半衰期相同:分别为14.5分钟和15.5分钟。
Hydroxyalkyl starch derivatives and process for their preparation
申请人:Fresenius Kabi Deutschland GmbH
公开号:EP2070950A1
公开(公告)日:2009-06-17
The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which , apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.
本发明涉及一种制备羟烷基淀粉衍生物的方法,该方法包括通过羟烷基淀粉(HAS)的可选氧化还原端与交联化合物的氨基 M 反应,交联化合物除氨基外,还包括一个特定保护的羰基,即缩醛基或缩酮基。
HYDROXYALKYL STARCH DERIVATIVES AND PROCESS FOR THEIR PREPARATION
申请人:Fresenius Kabi Deutschland GmbH
公开号:EP2231711B1
公开(公告)日:2012-11-07
US8404834B2
申请人:——
公开号:US8404834B2
公开(公告)日:2013-03-26
[EN] HYDROXYALKYL STARCH DERIVATIVES AND PROCESS FOR THEIR PREPARATION<br/>[FR] DÉRIVÉS D'AMIDON D'HYDROXYALKYLE ET LEUR PROCÉDÉ DE PRÉPARATION
申请人:FRESENIUS KABI DE GMBH
公开号:WO2009077154A1
公开(公告)日:2009-06-25
The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.
Diastereoselective Synthesis and ESR Study of 4-PhenylDEPMPO Spin Traps
5-(diethoxyphosphoryl)-5-methyl-4-phenylpyrroline N-oxide (4-PhDEPMPOt8 and 4-PhDEPMPOc9) were prepared stereoselectively and used as spintraps for hydroxyl and superoxide radicals. The spin adduct formed by reaction of the cis stereoisomer 9 with superoxide radical anion exhibited an 8-line ESR spectrum, showing only a reduced alternating line width phenomenon. This spectrum is simpler than the 12-line spectrum
立体选择性地制备了5-(二乙氧基磷酰基)-5-甲基-4-苯基吡咯啉N-氧化物(4-PhDEPMPO t 8和4-PhDEPMPO c 9)的顺式和反式非对映异构体,并将其用作羟基和超氧化物自由基的自旋阱。由顺式立体异构体9与超氧化物自由基阴离子反应形成的自旋加合物显示8线ESR谱,仅显示减少的交替线宽现象。该光谱比DEPMPO-OOH的12线光谱更简单,DEPMPO-OOH的12线光谱表现出很强的交替线宽现象。4-PhDEPMPO c -OOH和DEPMPO-OOH加合物的半衰期相同:分别为14.5分钟和15.5分钟。