by the α-bond cleavage of the carboxylic acid and also by the kind of alkyl group of the carboxylic acid (the latter offering the possibility of cyclization side reactions). Perfluorooxolanes were formed as a major cyclization by-product from the ECF of morpholino-substituted carboxylic acids when the chain length of the alkyl group of the carboxylic acids had a carbon number of three or more and the
Perfusate for preserving organ to be transplanted and preserving method
申请人:The Green Cross Corporation
公开号:EP0033402A1
公开(公告)日:1981-08-12
An organ to be transplanted, such as a kidney, can effectively be preserved for an increased period of time by perfusion using a perfusate which is made of a Ringer's solution modified by increasing its potassium ion content to 8-20 meq/liter with a stably emulsified perfluorocarbon compound and dissolved albumin. A preferred concentration of the perfluorocarbon compound, for example perfluorodecalin, is 7.5 to 12.5%(W/V) and that of albumin is 1-8%(W/V) based on the perfusate.
A nutritive emulsion having oxygen-transporting properties, and process for its preparation
申请人:Kabi Pharmacia AB
公开号:EP0220153A1
公开(公告)日:1987-04-29
An emulsion of perfluorocarbon compounds in an aqueous system has oxygen transporting properties. By incorporation of fat of animal or vegetable origin and at least one of the amino acids glycine, serine or phenylalanine, or urea in the emulsion, the stability of the emulsion will be increased to a point where it can be sterilized by autoclaving, and have nutritive properties as well. The invention also concerns the preparation of an emulsion stabilized in the above manner.
A stable concentrated aqueous emulsion of perfluorochemical, a phospholipid and a triglyceride of fatty acids has been demonstrated which has enhanced stability, diminished particle size and heightened tolerance by biological systems. The emulsion has utility as an oxygen transport medium, such as artificial blood. The emulsion can optionally include addition emulsifiers of SURFYNOL®SE surfactant and PLURONIC® P-105 surfactant. The emulsion is produced using an improved emulsification technique.
Verfahren zur Herstellung perfluorierter heterocyclischer Verbindungen und nach diesem Verfahren hergestellte Verbindungen
申请人:Kali-Chemie Aktiengesellschaft
公开号:EP0415264A2
公开(公告)日:1991-03-06
Es werden ein Verfahren zur Herstellung von perfluorierten heterocyclischen Verbindungen der allgemeinen Formel Ia und Ib
worin
m 3 oder 4 bedeutet und
X eine -CF₂-O-CF₂-Gruppe, eine -CF₂-CF₂-CF₂-Gruppe oder eine -CF(CF₃)-CF₂-Gruppe darstellt,
und deren Gemischen und das nach dem Verfahren hergestellten Perfluoro-N-cyclohexylmorpholin beschrieben. Die Verbindungen werden durch elektrochemische Perfluorierung ausgehend von entsprechenden Cycloalkenylderivaten erhalten und können u.a. zur Herstellung von medizinisch verwendbaren wäßrigen Emulsionen wie Blutersatzmitteln eingesetzt werden.
一种通式 Ia 和 Ib 的全氟杂环化合物的制备方法
其中
m 为 3 或 4,且
X 代表-CF₂-O-CF₂基团、-CF₂-CF₂-CF₂-CF₂基团或-CF(CF₃)-CF₂基团、
及其混合物,以及通过该工艺生产的全氟-N-环己基吗啉。这些化合物从相应的环烯基衍生物开始,通过电化学全氟反应制得,除其他外,可用于生产医用水乳剂,如血液替代品。