Pacific Corporation

Jong Eon Hong

Ok Sob Lee

Young Hun Byon

Bo Sub Lee

Sang Rhin Lee

Jong Ho Park

Ok Sub Lee

Hae Kwang Lee

Jung No Lee

Jun Chul Cho

Ji Min Chun

Dong Il Jang

Ki Hwa Lee

Jang Sob Lee

Yun Ki Cho

Jae Suk Ko

Hey Jin Jung

Hyun Jun Kim

Jong Il Kim

Ki Tack Nam

Ki Wha Lee

Myeung Su Ku

Duk Hee Kim

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 and a method for preparation thereof, and a

Disclosed herein are a L-ascorbic acid derivative having an improved water-in-stability, represented by a following general formula (I): ##STR1## and a method for preparation thereof, and to a skin-whitening cosmetic composition containing the same as an active ingredient.

Water-in-stable L-ascorbic acid derivative and a method for preparation

Disclosed herein is a method for preparing 3-aminopropane phosphoric acid represented by the formula (I), comprising the steps of (a) reacting 3-amino-1-propanoi with phosphorus oxychloride at a low temperature, and (b) hydrolyzing the product of the step (a) in the presence of an acidic catalyst, and a cosmetic composition containing 3-aminopropanic phosphoric acid or its salts as an active ingredient. ##STR1##

Method for preparing 3-aminopropane phosphoric acid

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Seoul, South Korea

Jong Eon Hong