Abstract:
A 4-substituted benzoic acid derivative compound having 3,4-methylenedioxybenzene or 3,4-ethylenedioxybenzene moiety is provided to promote the biosynthesis of main constituents of skin dermis such as collagen, elastin, fibrillin, glycosaminoglycan(GAG) closely related to skin wrinkles, thereby being usefully used as medicines and skin external applying agents for preventing aging and improving the wrinkles. An anti-aging cosmetic composition comprises 0.01-20.0 wt.% of a 4-substituted benzoic acid derivative compound having 3,4-methylenedioxybenzene or 3,4-ethylenedioxybenzene moiety and represented by the formula(I), wherein R1 is -CH2- or -CH2=CH2-, R2 is the structural formula(Ia), and R3 is H, methyl or ethyl. A method for preparing the 4-substituted benzoic acid derivative compound comprises the steps of: (a) preparing a compound(1) represented by the formula(1) from 3,4-methylenedioxybenzoic acid or 3,4-ethylenedioxybenzoic acid; and (b) hydrolyzing the compound of the formula(1) with a base to prepare a compound(2) represented by the formula(2).
Abstract:
A skin external composition for whitening skin containing tyrosol derivatives is provided to suppress pigment permeation, improve spots and freckles, and whiten the skin by inhibiting melanin formation without side effects. A skin external composition for whitening skin contains 0.001-10 wt.% of tyrosol derivatives represented by the formula(1), wherein Ar1 is the structural formula(1-a), Ar2 is the structural formula(1-b), m is an integer of 1 or 2 and n is an integer of 2 or 3, and is formulated as soft lotion, astringent lotion, nutrition lotion, nutrition cream, massage cream, essence, eye cream, eye essence, cleansing cream, cleansing foam, cleansing water, gel, pack, powder, body lotion, body cream, body oil or body essence.
Abstract:
2,3-Dihydroxybenzoic acid derivatives, a preparation method thereof, and a skin-whitening cosmetic composition containing the same compounds are provided to inhibit activity of tyrosinase and melanin formation while cytotoxicity of the compounds is very low, so that the compounds are useful for improvement of pigmentation in the skin. The method for preparing the 2,3-dihydroxybenzoic acid derivatives represented by the formula(1) comprises the steps of: (A) reacting 2,3-dihydroxybenzoic acid with acetic acid anhydride in the presence of base to prepare a 2,3-diacetyloxybenzoic acid compound represented by the formula(2); (B) preparing an amide compound represented by the formula(3) from the 2,3-diacetyloxybenzoic acid compound by using ethylchloroformate and amine having a lipophilic group; and (C) hydrolyzing an acetyl group of the amide compound represented by formula (3) to prepare 2,3-dihydroxybenzoic acid represented by the formula (1), wherein R is 4-ethoxyphenyl, 2-cyclohexenylethyl, cycloheptyl, cyclohexyl, tert-octyl, 4-isopropylphenyl, 2,3-dihydrobenzo[1,4]dioxin-7-yl, benzo[1,3]-dioxol-6-yl or adamantyl-1-yl; and the amine having the lipophilic group is an amine selected from 4-ethoxyphenylamine, 2-cyclohexenylethylamine, cycloheptylamine, cyclohexylamine, tert-octylamine, 4-isopropylphenylamine, 2,3-dihydrobenzo[1,4]dioxin-7-amine, benzo[1,3]-dioxol-6-amine or adamantyl-1-amine. The skin-whitening cosmetic composition contains 0.01-20 wt.% of the 2,3-dihydroxybenzoic acid derivatives represented by the formula(1).
Abstract:
본 발명은 강력한 미백효과를 가지며 하기 화학식 1로 표시되는 신규 히드록시피라논 이합체 또는 하기 화학식 2로 표시되는 그의 염 화합물, 이의 제조방법 및 이를 함유하는 피부 미백용 조성물에 관한 것으로, 하기 화학식 1 또는 2의 화합물은 멜라닌 생성을 억제함으로써 피부의 색소침착을 개선시켜 미백 효과를 나타내는 효능이 있으므로, 이를 함유하는 피부 미백용 조성물은 화장료 조성물로써 유용하게 이용될 수 있다. [화학식 1]
Abstract:
본 발명은 녹차로부터 수득한 캄페롤 배당체를 함유하는 녹차 추출물을 산, 염기, 효소, 또는 상기 효소를 생산하는 미생물을 이용한 분해 반응을 통해 얻어진 녹차 유래의 캄페롤을 유효성분으로 함유하는 항노화용, 주름 개선용, 및 피부 탄력 향상용 피부 외용제 조성물에 관한 것으로, 그 중 캄페롤 함량이 90%이상인 것을 특징으로 한다. 본 발명의 상기 방법으로 수득한 녹차 유래의 캄페롤은 지질 과산화 억제 효과, 콜라겐 생합성 촉진 효과를 가지며, 이를 통해 자외선(ultraviolet rays; UV)에 의해 생성된 지질 산화물인 스쿠알렌 모노퍼옥시드로부터 유도된 주름을 개선하는 효과를 나타내며, 엘라스타아제 및 콜라게나아제의 발현 억제 효과를 통해, 이 두 가지 활성의 복합 상승 작용으로 피부 탄력을 향상시키는 효과를 나타내므로, 이를 포함하는 피부 외용제 조성물은 항노화용, 주름 개선용, 및 피부 탄력 향상용 화장료 조성물 또는 약학 조성물로서 매우 유용하게 사용될 수 있다. 녹차, 캄페롤 배당체, 산, 염기, 효소, 노화, 지질 과산화, 콜라겐, 스쿠알렌 모노퍼옥시드, 주름, 개선, 엘라스타아제, 콜라게나아제, 탄력, 외용제, 화장료, 약학, 조성물.
Abstract:
Sesamol derivatives or their salts, a process for preparing the same compounds, and a skin external composition containing the same compounds are provided to prevent aging of the biological membrane by slowly releasing sesamol and 3-aminopropan phosphate, and reduce the skin irritation. The sesamol derivatives represented by the formula(I) or their salts are provided, wherein the salt is alkali metal salt or alkali earth metal salt. The process for preparing the sesamol derivatives represented by the formula(I) or their salts comprises the steps of: (A) reacting sesamol with phosphorus oxychloride in the presence of organic base at 12-18 deg. C for 1-2 hours to prepare dichloro[3,4-methylene dioxy penoxy]-phosphino-1-one; (B) reacting the dichloro[3,4-methylene dioxy penoxy]-phosphino-1-one with organic solvent in the presence of base to prepare [3,4-methylene dioxy penoxy]-1,3,2-oxazaphosphorin P-oxide; (C) after filtering the reaction solution and concentrating the filtered solution under reduced pressure, adding the acid solution into the concentrate and reacting them at 5-100 deg. C for 3-12 hours to prepare sesamol(3-aminopropane phosphate diester); and (D) crystallizing the sesamol(3-aminopropane phosphate diester) by slowly dropping polar organic solvent into the sesamol.
Abstract:
Mesoporous silica complex with L-menthol and a method for manufacturing thereof are provided to reduce skin irritation of L-menthol without loss of its useful effects by encapsulating it with the mesoporous silica, so that sebum absorption, skin cooling, promotion of blood circulation and induction of skin alleviation are accomplished. The mesoporous silica encapsulating L-menthol is provided, wherein the mesoporous silica complex has particle size of 1-50 mum, pore size of 7-10 cm and specific surface area of 500-700 m^2/g. The method for manufacturing the mesoporous silica with L-menthol comprises the steps of: preparing mesoporous silica; and mixing the mesoporous silica with L-menthol, wherein the mixing ratio of mesoporous silica and L-menthol is 100:3~60. A cosmetic composition comprises the mesoporous silica with L-menthol.
Abstract:
본 발명은 하기 화학식 1로 표시되는 히드록삼산(Hydroxamic acid) 유도체 및 그 제조방법에 관한 것이다: [화학식 1]
상기 식 중에서, R 1 은 CONH, NHCO, CONR 4 또는 NR 4 CO 이고; 여기서, 상기 R 4 는 수소 또는 C 1-10 의 알킬이고; R 2 는 -(CH)n- 이며, n = 0 또는 1이고; 및 R 3 는 수소 또는 C 1-10 의 알킬이다. 또한 본 발명은 상기 화학식 1의 히드록삼산 유도체를 유효성분으로 함유하는 피부노화 방지용 피부 외용제 조성물에 관한 것이다. 레티노이드 * 레티노익산 수용체 * 히드록삼산 유도체 * 항노화 * 콜라겐 * 엘라스틴 * 콜라게나아제 발현억제 * 엘라스테이즈 발현억제 * 탄력 개선 * 피부 외용제
Abstract:
본 발명은 하기 화학식 1로 표시되는 히드록삼산(Hydroxamic acid) 유도체 및 그 제조방법에 관한 것이다: [화학식 1]
상기 식 중에서, R 1 은 CONH, NHCO, CONR 4 또는 NR 4 CO 이고; 여기서, 상기 R 4 는 수소 또는 C 1-10 의 알킬이고; R 2 는 -(CH)n- 이며, n = 0 또는 1이고; 및 R 3 는 수소 또는 C 1-10 의 알킬이다. 또한 본 발명은 상기 화학식 1의 히드록삼산 유도체를 유효성분으로 함유하는 피부노화 방지용 피부 외용제 조성물에 관한 것이다. 레티노이드 * 레티노익산 수용체 * 히드록삼산 유도체 * 항노화 * 콜라겐 * 엘라스틴 * 콜라게나아제 발현억제 * 엘라스테이즈 발현억제 * 탄력 개선 * 피부 외용제