Ceramide-like compounds and a method for preparation thereof, and a
申请人:Pacific Corporation
公开号:US06060612A1
公开(公告)日:2000-05-09
Disclosed herein is a ceramide-like compound having properties of the natural ceramides, and a method for producing the same, and a cosmetic composition containing the same as a active ingredient.
Ceramide-like compounds having antioxidant property and a method for preparation thereof, and a cosmetic composition containing the same
申请人:——
公开号:US20010056083A1
公开(公告)日:2001-12-27
Disclosed herein is a ceramide-like compound having properties of the natural ceramides and represented by the following formula (I), and a method for producing the same, and a cosmetic composition containing the same as an active ingredient.
1
wherein,
m and n, which may be the same or different, each is independently an integer from 1 to 3, inclusive;
k and 1, which may be the same or different, each is independently an integer from 1 to 2, inclusive;
j is 0 or 1;
A
1
, A
2
and A
3
, which may be the same or different, each represents H or any one of the following structures :and
2
(wherein,
M, M
1
and M
2
represent independently alkali metals or organic base containing nitrogen, and
L represents alkaline earth metals.)
R represents a group having the following structure:
3
wherein,
B is methyl group at the 5-,7- or 8- position;
m is an integer from 1 to 3, inclusive;
D is —CH
2
—CH(CH
3
)- or —CH═C(CH
3
)-.
Composition for external application containing a ceramide, a derivative thereof and an extract of Hibisci cortex
申请人:AMOREPACIFIC CORPORATION
公开号:US11166899B2
公开(公告)日:2021-11-09
The present disclosure relates to an external-use skin preparation composition containing a natural ceramide, a ceramide derivative, and a Hibisci cortex extract, and more specifically, the present disclosure relates to an external-use skin preparation composition containing these ingredients, thereby being effective for enhancing skin moisturizing ability, reducing skin wrinkles, and enhancing elasticity. In addition, the present disclosure relates to use of the composition, and a method for improving skin moisturization, reducing skin wrinkles, and/or improving skin elasticity by using the composition.
Metal oxide in aqueous organic solution promoted chemoselective N-sulfonylation of hydrophilic amino alcohols
作者:Hak Hee Kang、Ho Sik Rho、Duck Hee Kim、Seong-Geun Oh
DOI:10.1016/s0040-4039(03)01666-6
日期:2003.9
The reaction of hydrophilic amino alcohols with sulfonyl chlorides in the presence of metal oxide (MgO, CuO, Ag2O) in aqueous organic solution cleanly provided alkanolsulfonamide. Advantages of this method were mild, neutral reaction conditions, chemoselectivity and easy isolation of the final product. (C) 2003 Published by Elsevier Ltd.
Chemoselective N-acylation of amino alcohols promoted by magnesium oxide in aqueous organic solution
作者:Duck-Hee Kim、Ho-Sik Rho、Jae Won You、Jong Chan Lee
DOI:10.1016/s0040-4039(01)02134-7
日期:2002.1
The reaction of hydrophilic amino alcohols with acid chlorides in the presence of magnesium oxide in aqueous organic solution (THF/H2O=4:1) cleanly provided alkanolamides. (C) 2002 Elsevier Science Ltd. All rights reserved.