Ginsenoside fatty acid ester compound, preparation method thereof and cosmetic composition containing same
A technology for saponin fatty acid and ester compounds, which is applied in the field of ginsenoside fatty acid ester compounds, can solve the problems of low skin penetration and little effect, and achieve the effects of improving hydrophobicity, inhibiting expression, and inhibiting the formation of melanin.
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Embodiment 1
[0100] [Embodiment 1] Preparation of the compound of chemical formula 2
[0101] Into a pressure vessel (Pressure Tube), inject the compound of above-mentioned chemical formula 8 (compound K, 1eq), vinyl palmitate (2.5eq), Molecular body (100wt%), Novozymes lipase 435 and anhydrous acetone (500wt%, 5 times of matrix), stirred at 45°C for 3 days for reaction.
[0102] After the reaction was completed, the obtained product was purified by silica gel column chromatography (ethyl acetate:methanol=10:1) to prepare the compound of chemical formula 2 (white solid, yield 75%).
[0103] 1H-NMR (300MHz, CDCl 3 )d 7.27(1H), 5.78(1H), 5.28(2H), 5.16(1H), 5.02(1H), 4.77(1H), 4.42(1H), 4.15(1H), 4.04(1H), 3.93(1H ),3.83(1H),3.56-3.47(3H),2.44(2H),2.35(3H),2.21(1H),2.15(1H),2.06(1H),1.90-1.87(3H),1.80-1.78( 2H), 1.72-1.61(13H), 1.57-1.41(5H), 1.31-1.25(14H), 1.16(4H), 1.07-1.00(4H), 0.93-0.88(12H)
Embodiment 2
[0104] [Embodiment 2] Preparation of the compound of chemical formula 3
[0105] Except using the compound of chemical formula 7 (ginsenoside F1, 1 eq) as the starting material, the same procedure as that of Example 1 was used to prepare the compound of chemical formula 3 (yield 85%).
[0106] 1H-NMR (300MHz, CDCl 3 )d 7.27(1H), 5.74(1H), 5.26-5.16(4H), 5.02(1H), 4.77(1H), 4.42(1H), 4.27-4.15(2H), 4.02(2H), 3.83(1H) ,3.56(1H),3.51(1H),3.37(1H),2.43(2H),2.34(3H),2.21-2.06(3H),1.92(1H),1.79-1.61(17H),1.57(3H), 1.41-1.35(8H),1.31-1.27(23H),1.2-1.12(2H),1.04-0.74(13H)
Embodiment 3
[0107] [embodiment 3] preparation of the compound of chemical formula 4
[0108] Except using the compound of chemical formula 8 (compound K, 2eq) as the starting material, the same procedure as that of Example 1 was used to prepare the compound of chemical formula 4 (yield 89%).
[0109] 1H-NMR (300MHz, CDCl 3 )d 7.27(1H), 5.74(1H), 5.26-5.16(4H), 5.02(1H), 4.77(1H), 4.42(1H), 4.27-4.15(2H), 4.02(2H), 3.83(1H) ,3.56(1H),3.51(1H),3.37(1H),2.43(2H),2.34(3H),2.21-2.06(3H),1.92(1H),1.79-1.61(17H),1.57(3H), 1.41-1.35(8H),1.31-1.27(23H),1.2-1.12(2H),1.04-0.74(13H)
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