Novel skin permeation enhancers based on amino acid ester ionic liquid: Design and permeation mechanism
作者:Luyao Zheng、Zhiyuan Zhao、Ye Yang、Yaming Li、Chengxiao Wang
DOI:10.1016/j.ijpharm.2020.119031
日期:2020.2
based on amino acids. We first screened 15 methyl amino acidesterhydrochlorides ([AAC1]Cl) for their skin permeation enhancements using 5-Fluorouracil (5-Fu) and Hydrocortisone (HC) as model drugs. Glycine methyl esterhydrochloride ([GlyC1]Cl), L-proline methyl esterhydrochloride ([L-ProC1]Cl), and L-leucine methyl esterhydrochloride ([L-LeuC1]Cl) were selected, and their ester sites were modified
The invention relates to detergent compositions suitable for cleaning fabrics or hard surfaces, and comprising a nonionic glycolipid surfactant which is an aldobionamide.
本发明涉及适用于清洁织物或硬表面的洗涤剂组合物,其中包含一种醛缩二酰胺非离子糖脂表面活性剂。
A process of preparing N-substituted aldonamides
申请人:UNILEVER N.V.
公开号:EP0550106A1
公开(公告)日:1993-07-07
A process of preparing aldonamides and N-substituted aldonamides which includes the steps of recovering a by-product of the process (an ammonium salt of an aldonic acid) and converting it into at least one starting material. Aldonolactone is reacted with a primary or secondary amine and the resulting solution containing the by-product of the reaction is treated to obtain a second solution containing the starting amine and some aldonamide. Preferably, the solution is treated with a solid base to obtain a solid aldonate salt and a second solution containing the starting amine and some aldonamide. The second solution may be recycled as part of the starting material mixture. Alternatively, the amine and the aldonamide may be recovered from the second solution, and the amine alone may be recycled. The solid salt of aldonic acid may be converted into aldonic acid, which in turn may be converted into aldonolactone. The obtained aldono-1,5-lactone may also be utilized as a starting ingredient in the synthesis according to the present invention.
The invention relates to novel personal product compositions comprising specified glycolipids, and in particular to compositions comprising nonionic aldobionamides as surface active agents in the compositions. Particularly preferred components are lactobionamide and maltobionamides.
Dentifrice compositions including specific aldobionamides having a β-galactosidic linkage e.g., lactobionamides, which act as antimicrobial agents and/or inhibitors of bacterial adhesion.