Pyrimidine acyclic nucleosides. 1-[(2-Hydroxyethoxy)methyl]pyrimidines as candidate antivirals
作者:James L. Kelley、John E. Kelsey、William R. Hall、Mark P. Krochmal、Howard J. Schaeffer
DOI:10.1021/jm00138a022
日期:1981.6
A number of pyrimidine acyclicnucleosides were synthesized and tested for activity against herpes simplex virus type 1. Synthesis of 1-[(2-hydroxyethoxy)methyl]cytosine (8) and 1-[(2-hydroxyethoxy)methyl]uracil (14) was accomplished in two or three steps from 2,4-diethoxypyrimidine and 2-(benzoyloxy)ethoxymethyl chloride. The 5-methyl (20), 5-(trifluoromethyl) (21), and 5-fluoro (22) analogues of
Lipids and lipid assemblies comprising transfection enhancer elements
申请人:Panzner Steffen
公开号:US20080145413A1
公开(公告)日:2008-06-19
This disclosure describes structural elements that enhance fusogenicity of lipids and lipid assemblies (e.g. liposomes) with biological membranes, in particular cell membranes, and use of such structures. The elements are pH sensitive in terms of charge and hydrophilicity and undergo a polar—apolar transition when exposed to low pH.
Construction and use of transfection enhancer elements
申请人:novosom AG
公开号:EP1935434A1
公开(公告)日:2008-06-25
This disclosure describes structural elements that enable transport of otherwise impermeable polar substances across biological membranes, in particular cell membranes. The elements are pH sensitive in terms of charge and hydrophilicity and undergo a polar - apolar transition when exposed to low pH.
The anodic oxidative decarboxylation of isomers of uracil and thymine acetic acids was studied. Electrolysis in methanolic or ethanolic solutions yielded respective alkoxymethyl derivatives via carbocationic intermediates. In acetic acid/sodium acetate medium, these were trapped by acetate, resulting in corresponding acetoxymethyl derivatives. Electrolysis in fully deuterated methanol or deuterated acetic acid, allow to obtain respective trideuterated compounds. (C) 1997, Elsevier Science Ltd.
Oivanen, Mikko; Rajamaeki, Markku; Varila, Jaana, Journal of the Chemical Society. Perkin transactions II, 1994, # 2, p. 309 - 314
作者:Oivanen, Mikko、Rajamaeki, Markku、Varila, Jaana、Hovinen, Jari、Mikhailov, Sergey、Loennberg, Harri