comparative study on the substraterecognition was conducted successfully in Novozym 435-mediated acylation of various 2′- or 5-substituted nucleosides with acyl donors carrying different aliphatic chain lengths (C6, C10, and C14). The unexpected results revealed that the physicochemical property of the substituents (such as the size, hydrophobicity, and substitutional position) in nucleosides profoundly influenced
SUBSTITUTED NUCLEOSIDE DERIVATIVES WITH ANTIVIRAL AND ANTIMICROBIAL PROPERTIES
申请人:Doncel Gustavo F.
公开号:US20110039798A1
公开(公告)日:2011-02-17
The present invention relates to fatty acid and fatty alcohol substituted nucleoside derivatives and nucleoside and nucleoside derivatives substituted on multivalent scaffolds (e.g., polymers, peptides, polycarboxylic acid substituted compounds, compounds containing polycycloSaligenyl groups) that display potent anti-HIV activity. Furthermore, they show enhanced activity against multi-drug resistant, R5, and cell-associated virus. Some of them also display activity against other sexually transmitted pathogens and sperm. The present invention provides their methods of synthesis, composition of matter, and methods of use. Emphasis is placed on their application as topical microbicides to treat or prevent sexual transmission of disease, especially HIV/AIDS.
CELL CULTURE MEDIUM
申请人:Bramke Irene
公开号:US20110104754A1
公开(公告)日:2011-05-05
We describe a method of growing an animal cell in a culture medium, in which the culture medium comprises an elevated concentration of a thymidine family member, in which the growth or viability of the animal cell is increased as a result of the elevated concentration of the thymidine family member in the cell culture medium. Preferably, the cell culture medium comprises a semi-solid medium, which is a serum free or chemically defined medium.