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Wu J.-Q.,CAS Changchun Institute of Applied Chemistry | Wu J.-Q.,Changzhou Institute of Technology | Li Y.-S.,CAS Changchun Institute of Applied Chemistry
Coordination Chemistry Reviews | Year: 2011

The design and synthesis of well-defined vanadium complexes as efficient catalysts for olefin polymerization remains an attractive project for organometallic and polymeric research. Recently, vanadium complexes with well-defined structures have been explored for olefin (co)polymerization by several groups around the world. This article summarizes our recent progress in well-defined vanadium complexes bearing a variety of chelating β-enaminoketonato, salicylaldiminato, iminopyrrolide and tetradentate amine trihydroxy ligands, and their applications in ethylene polymerization, ethylene/α-olefin copolymerization and ethylene/cycloolefin copolymerization. The application of the optimized catalysts in the copolymerization of ethylene and polar monomer such as 3-buten-1-ol, 5-hexen-1-ol, 10-undecen-1-ol and 5-norbornene-2-methanol is also discussed. Particular attention has been paid to the relationships between the catalytic behavior and the electronic and geometrical structure of the precatalyst. © 2011 Elsevier B.V.


Feng P.,Changzhou Institute of Technology
Proceedings - 2012 IEEE Symposium on Robotics and Applications, ISRA 2012 | Year: 2012

There has been a serious problem with security issues since the inception of Wireless LAN, westudied the current wireless local area network face some of the major security issues, and describes the corresponding solutions. In recent years, with the popularity of a variety of wireless devices and wireless local area network with its easy access, flexible networking, mobile data transmission has a unique advantage and so can develop rapidly. Service development has two sides, with the wireless LAN applications continue to expand, wireless local area network, more and more threats, the wireless network being based on traditional wired networks not only TCP/IP-based attacks, but also by their own standards based on IEEE 802.11Security attacks, the security problems being taken seriously. © 2012 IEEE.


Patent
Changzhou Institute of Technology | Date: 2010-04-16

Arsenic compounds of general formula (I), their preparation methods, the pharmaceutical compositions containing the compounds, and their uses in the manufacture of medicaments for treating cancer, particularly leukemia, are disclosed.


Patent
Changzhou Institute of Technology | Date: 2011-08-24

The present invention relate to a preparation method of high-purity L-carnitine which belongs to an important technique of qulity control in different steps of chiral medicine production. The method comprises the following steps of :monitoring the content of the L-isomer impurity in chiral material S-epichlorohydrin by gas chromatography and chiral cilumn and controlling the content of the L-isomer impurity in chiral raw material in the definite range; monitoring and controlling the specific optical rotation of the chiral intermediate L-3-chloro-2-hydroxy-N,N,N-trimethyl-propanaminium in the definite ranges using a polarimeter; monitoring the content of the R-isomer in the intermediate L-3-cyano-2-hydroxy-N,N,N-trimethyl-propanaminium using derivation agent (+)-methyl-6-methoxy-2-naphthaleneaceyl chloride by HPLC and controlling the content of the isomer in the intermediate in the definite range; and measuring the final product L-carnitine using derviation agent (+)-methyl-6-methoxy-2-naphthaleneaceyl chloride by HPLC. This method gives the high-purity L-carnitine in which the content of L-isomer may be more than 97% and that of R-isomer less than 2%.


Patent
Changzhou Institute of Technology | Date: 2014-04-22

The present invention relates to an oral pharmaceutical composition for increasing hypoxia tolerance, characterized in that the pharmaceutical composition comprises active ingredient L-carnitine or derivative thereof or pharmaceutically acceptable salt thereof, active ingredient trimetazidine or pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable auxiliary material, and 100:1 is the weight ratio of L-carnitine or derivative thereof or pharmaceutically acceptable salt thereof and trimetazidine or pharmaceutically acceptable salt thereof.


Patent
Changzhou Institute of Technology | Date: 2010-01-27

The use of L-carnitine or derivatives thereof in the manufacture of medicaments for treating hyperuricemia and related diseases. The derivatives of L-carnitine are selected from acetylcarnitine, propionylcarnitine, their pharmaceutical acceptable salts, and a pharmaceutical acceptable salt of L-carnitine


Patent
Changzhou Institute of Technology | Date: 2016-03-16

The present invention relates to an oral pharmaceutical composition for increasing hypoxia tolerance, characterized in that the pharmaceutical composition comprises active ingredient L-carnitine or derivative thereof or pharmaceutically acceptable salt thereof, active ingredient trimetazidine or pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable auxiliary material, and 100:1 is the weight ratio of L-carnitine or derivative thereof or pharmaceutically acceptable salt thereof and trimetazidine or pharmaceutically acceptable salt thereof.


Patent
Changzhou Institute of Technology | Date: 2016-03-16

The present invention discloses an antihypoxic pharmaceutical composition and application thereof, The pharmaceutical composition contains vinpocetine and L-carnitine or a derivative thereof and a pharmaceutically acceptable salt thereof, and also can contain trimetazidine or a pharmaceutically acceptable salt thereof.


Patent
Changzhou Institute of Technology | Date: 2011-07-27

A preparation method and its use of derivatisation reagent for detecting L-carnitine or D-carnitine are provided. The present reagent is stable. It can be used for detecting L-carnitine or D-carnitine accurately and sensitively. That is to say, the reagent is applied to detecting the amount of synthesized or natural L-carnitine and the amount of mixing D-carnitine. The compound reagent is used for determining the chiral isomers of chemicals, biological reagents, health care reagents, cosmetic, body fluids and various foods, which contain L-carnitine or/and D-carnitine, and optical isomers of other chiral amino acids.


Patent
Changzhou Institute of Technology | Date: 2014-04-21

The present invention discloses an antihypoxic pharmaceutical composition and application thereof. The pharmaceutical composition contains vinpocetine and L-carnitine or a derivative thereof and a pharmaceutically acceptable salt thereof, and also can contain trimetazidine or a pharmaceutically acceptable salt thereof.

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