DRUG-LIGAND CONJUGATES, SYNTHESIS THEREOF, AND INTERMEDIATES THERETO
申请人:Kane John
公开号:US20130131310A1
公开(公告)日:2013-05-23
The present invention relates to methods for synthesizing compounds of formula I or pharmaceutically acceptable salts thereof: (I) wherein each of X, Alk, and W are as defined and described herein.
New antimicrobial self-assembling short lipopeptides
作者:César Vicente-García、Ignacio Colomer
DOI:10.1039/d1ob01227d
日期:——
self-assemble into functional structures with applications in the areas of nanotechnology, catalysis or medicinal chemistry. Herein, we report a library of 21 short lipopeptides, together with their supramolecular characterization and antimicrobial activity against both Gram-negative (E. coli) and Gram-positive (S. aureus) strains. This study shows that simple lipoaminoacids self-assemble into micellar
and to understand the intrinsic nature of life systems. Fatty acids are well-known amphiphiles that form self-assemblies of several shapes. Here, we found that the lengths of helical structures of oleic acidformed in a buffered aqueous solution are dramatically different by the presence or absence of certain amphiphilic carboxylic acids. For example, under the coexistence of a small amount of N-decanoyl-L-alanine
Gel compositions, which contain:
(A) at least one N-acyl amino acid represented by formula (1):
wherein R
1
denotes a straight or branched-chain saturated hydrocarbon group having from 1 to 25 carbon atoms or a straight or branched-chain unsaturated hydrocarbon group optionally containing an aromatic ring, and X denotes an aliphatic or aromatic α-, β-, or γ-amino acid; and
(B) at least one oily base, can be obtained in the form of a translucent to milky white, creamy to solid gel, with an attractive appearance. When employed in aromatic cosmetic compositions such as cosmetics, such gel compositions yield an aromatic cosmetic product that does not produce a clammy or clogging feeling and that affords good spreadability.