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JP2011079772A5
JP2011079772A5 JP2009233040A JP2009233040A JP2011079772A5 JP 2011079772 A5 JP2011079772 A5 JP 2011079772A5 JP 2009233040 A JP2009233040 A JP 2009233040A JP 2009233040 A JP2009233040 A JP 2009233040A JP 2011079772 A5 JP2011079772 A5 JP 2011079772A5
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ascorbic acid
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本発明は、化粧料の原料等として好適に用いられるグリセリルアスコルビン酸アシル化誘導体又はその塩に関する。本発明は、又、前記グリセリルアスコルビン酸アシル化誘導体又はその塩の製造方法に関する。本発明は、更に、前記グリセリルアスコルビン酸アシル化誘導体又はその塩を配合した化粧料に関する。 The present invention relates to an acylated derivative of glyceryl ascorbic acid or a salt thereof suitably used as a raw material for cosmetics. The present invention also relates to a method for producing the acylated derivative of glyceryl ascorbic acid or a salt thereof . The present invention further relates to a cosmetic comprising the glyceryl ascorbyl acylated derivative or a salt thereof.

特許文献3、特許文献4では、グリコシル−L−アスコルビン酸のアシル化誘導体について開示されており、ラジカル捕捉能や、抗壊血病に対して優れると示されているが、保湿効果に関しては全く開示されておらず、皮膚の柔軟性や肌荒れ改善等に大きく関与する保湿効果というものを期待できるとは考え難い。 Patent Document 3 and Patent Document 4 disclose acylated derivatives of glycosyl-L-ascorbic acid, which are shown to be excellent for radical scavenging ability and anti-scurvy, but have no moisturizing effect. It is not disclosed, and it is difficult to expect a moisturizing effect that greatly contributes to improvement of skin flexibility and rough skin.

なお、以下の例示においてアシル基とは、ホルミル基、アセチル基、プロピオニル基、ブタノイル基、ペンタノイル基、ヘキサノイル基、ヘプタノイル基、オクタノイル基、ノナイル基、デカノイル基、ウンデカノイル基、ドデカノイル基、テトラデカノイル基、ヘキサデカノイル基、エイコサノイル基、ヘキサデセノイル基、オクタデセノイル基、オクタデカトリエノイル基、イコサテトラエノイル基、イソオクタノイル基、イソパルミトイル基、イソステアロイル基、2−プロピルペンタノイル基、2−ブチルヘキサノイル基、2−ペンチルヘプタノイル基等を示す。 In the following examples, the acyl group means formyl group, acetyl group, propionyl group, butanoyl group , pentanoyl group, hexanoyl group, heptanoyl group, octanoyl group, nonyl group, decanoyl group, undecanoyl group, dodecanoyl group, tetradecanoyl group Group, hexadecanoyl group, eicosanoyl group, hexadecenoyl group, octadecenoyl group, octadecatrienoyl group, icosatetraenoyl group, isooctanoyl group, isopalmitoyl group, isostearoyl group, 2-propylpentanoyl group, 2-butylhexanoyl group A noyl group, a 2-pentylheptanoyl group, and the like;

2−O−グリセリル−6−O−アシルアスコルビン酸、2−O−グリセリル−5−O−アシルアスコルビン酸、2−O−グリセリル−3−O−アシルアスコルビン酸、2−O−アシルグリセリルアスコルビン酸、3−O−グリセリル−6−O−アシルアスコルビン酸、3−O−グリセリル−5−O−アシルアスコルビン酸、3−O−グリセリル−2−O−アシルアスコルビン酸、3−O−アシルグリセリルアスコルビン酸等がグリセリルアスコルビン酸アシル化誘導体として挙げられる。   2-O-glyceryl-6-O-acyl ascorbic acid, 2-O-glyceryl-5-O-acyl ascorbic acid, 2-O-glyceryl-3-O-acyl ascorbic acid, 2-O-acyl glyceryl ascorbic acid 3-O-glyceryl-6-O-acyl ascorbic acid, 3-O-glyceryl-5-O-acyl ascorbic acid, 3-O-glyceryl-2-O-acyl ascorbic acid, 3-O-acyl glyceryl ascorbine An acid etc. are mentioned as an acylated derivative of glyceryl ascorbic acid.

実施例1 2−O−グリセリル−6−O−ブタノイルアスコルビン酸の合成
アルゴン雰囲気下、2−O−グリセリルアスコルビン酸(50mg)にピリジン5mLを加え、n−ブタン酸無水物(57mg)を加え、60℃で3時間攪拌を行った。その後、酢酸エチルを加え水により抽出を行った。抽出液を減圧下にて濃縮し、得られた残渣98mgをシリカゲルカラムクロマトグラフィーに付した。クロロホルム/メタノール/水=7/3/0.3混液にて溶出し精製を行い、減圧下にて濃縮を行い、化3で示される2−O−グリセリル−6−O−ブタノイルアスコルビン酸(43mg)を得た。1H−NMRと13C−NMRにより同定を行った。
Example 1 Synthesis of 2-O-glyceryl-6-O-butanoyl ascorbic acid Under argon atmosphere, 5 mL of pyridine was added to 2-O-glyceryl ascorbic acid (50 mg), and n-butanoic anhydride (57 mg) was added. And stirring at 60 ° C. for 3 hours. Then, ethyl acetate was added and extracted with water. The extract was concentrated under reduced pressure, and 98 mg of the resulting residue was subjected to silica gel column chromatography. Purification is carried out by elution with a mixed solution of chloroform / methanol / water = 7/3 / 0.3, followed by concentration under reduced pressure, and 2-O-glyceryl-6-O- butanoylascorbic acid represented by Chemical formula 3 ( 43 mg) was obtained. Identification was performed by 1 H-NMR and 13 C-NMR.

Figure 2011079772
Figure 2011079772

実施例3 2−O−グリセリル−6−O−ヘキサデカノイルアスコルビン酸の合成
アルゴン雰囲気下、2−O−グリセリルアスコルビン酸(50mg)にピリジン5mLを加え、n−ヘキサデカン酸無水物(176mg)を加え、60℃で3時間攪拌を行った。その後、水を加え酢酸エチルにより抽出を行った。抽出液を減圧下にて濃縮し、得られた残渣134mgをシリカゲルカラムクロマトグラフィーに付した。クロロホルム/メタノール/水=7/3/0.3混液にて溶出し精製し、減圧下にて濃縮を行い、化5で示される2−O−グリセリル−6−O−ヘキサデカノイルアスコルビン酸(65mg)を得た。1H−NMRと13C−NMRにより同定を行った。
Example 3 Synthesis of 2-O-glyceryl-6-O-hexadecanoyl ascorbic acid Under argon atmosphere, 5 mL of pyridine was added to 2-O-glyceryl ascorbic acid (50 mg), and n- hexadecanoic anhydride (176 mg) was added. In addition, the mixture was stirred at 60 ° C. for 3 hours. Then, water was added and extraction was performed with ethyl acetate . The extract was concentrated under reduced pressure, and 134 mg of the resulting residue was subjected to silica gel column chromatography. Elution was carried out with a mixture of chloroform / methanol / water = 7/3 / 0.3, followed by concentration under reduced pressure, and 2-O-glyceryl-6-O-hexadecanoyl ascorbic acid ( 65 mg) was obtained. Identification was performed by 1 H-NMR and 13 C-NMR.

実施例4 2−O−(3’− O−オクタノイルグリセリル)−6−O−オクタノイルアスコルビン酸の合成
アルゴン雰囲気下、2−O−グリセリルアスコルビン酸(50mg)にピリジン5mLを加え、n−オクタン酸無水物(194mg)を加え、60℃で3時間攪拌を行った。その後、水を加え酢酸エチルにより抽出を行った。抽出液を減圧下にて濃縮し、得られた残渣232mgをシリカゲルカラムクロマトグラフィーに付した。クロロホルム/メタノール/水=7/3/0.3混液にて溶出し精製し、減圧下にて濃縮を行い、化6で示される2−O−(3’− O−オクタノイルグリセリル)−6−O−オクタノイルアスコルビン酸(83.0mg)を得た。1H−NMRと13C−NMRにより同定を行った。
Example 4 2-O-under argon atmosphere (3 '- - O octanoyl glyceryl) -6-O-octanoyl-ascorbic acid, the 2-O-glyceryl ascorbic acid (50 mg) in pyridine 5mL added, n- Octanoic anhydride (194 mg) was added, and the mixture was stirred at 60 ° C. for 3 hr. Then, water was added and extraction was performed with ethyl acetate. The extract was concentrated under reduced pressure, and 232 mg of the resulting residue was subjected to silica gel column chromatography. Chloroform / methanol / water = 7/3 / 0.3 eluting with mixture was purified, and concentration under reduced pressure, 2-O-represented by the formula 6 (3 '- O - octanoyl glyceryl) -6 -O-octanoyl ascorbic acid (83.0 mg) was obtained. Identification was performed by 1 H-NMR and 13 C-NMR.

実施例6 2−O−グリセリル−6−O−(2−エチルヘキサノイル)アスコルビン酸の合成
アルゴン雰囲気下、2−O−グリセリルアスコルビン酸(50mg)にピリジン5mLを加え、2−エチルへキサン酸無水物(118mg)を加え、60℃で3時間攪拌を行った。その後、酢酸エチルを加え水により抽出を行った。抽出液を減圧下にて濃縮し、得られた残渣134mgをシリカゲルカラムクロマトグラフィーに付した。クロロホルム/メタノール/水=7/3/0.3混液にて溶出し精製し、減圧下にて濃縮を行い、化8で示される2−O−グリセリル−6−O−(2−エチルヘキサノイル)アスコルビン酸(55mg)を得た。1H−NMRと13C−NMRにより同定を行った。
Example 6 Synthesis of 2-O-glyceryl-6-O- (2- ethylhexanoyl ) ascorbic acid Under argon atmosphere, 5 mL of pyridine was added to 2-O-glycerylascorbic acid (50 mg), and 2-ethylhexanoic anhydride was added. (118 mg) was added, and the mixture was stirred at 60 ° C. for 3 hours. Then, ethyl acetate was added and extracted with water. The extract was concentrated under reduced pressure, and 134 mg of the resulting residue was subjected to silica gel column chromatography. Elution was carried out with a mixture of chloroform / methanol / water = 7/3 / 0.3, and the mixture was concentrated under reduced pressure. 2-O-glyceryl-6-O- (2- ethylhexanoyl ) represented by the formula 8 Ascorbic acid (55 mg) was obtained. Identification was performed by 1 H-NMR and 13 C-NMR.

試料を100μM以下の濃度で適用し、測定したときのメラニン生成抑制率に基づき、美白効果を下記のように表記し、その結果を表1に示す。なお、測定はN=4で行った。
<30% :△
30以上、50%未満 :○
50%以上 :◎
The sample was applied at a concentration of 100 μM or less, and the whitening effect was expressed as follows based on the melanin production inhibition rate when measured , and the results are shown in Table 1. The measurement was performed at N = 4.
<30%: △
30 or more and less than 50% : ○
50% or more: ◎

Figure 2011079772
Figure 2011079772

試料を100μMの濃度で適用し、測定したときのコラーゲン産生量をControl群と比較し、その結果(Control群を100%としたときの%値)を以下の基準に基づき表2に示す。
<100% :±
100−200%:+
The sample was applied at a concentration of 100 μM, the amount of collagen produced when measured was compared with the Control group, and the results (% value when the Control group is 100%) are shown in Table 2 based on the following criteria.
<100%: ±
100-200%: +

Figure 2011079772
Figure 2011079772

試験例3 [安定性試験]
実施例2の2−O−グリセリル−6−O−オクタノイルアスコルビン酸を用いて、50℃で4週間保管したときのにおいと着色について安定性を下記の要領で評価した。比較品には、アスコルビン酸リン酸マグネシウム、アスコルビン酸、3−O−グリセリルアスコルビン酸を用いた。
Test Example 3 [Stability test]
Using 2-O-glyceryl-6-O-octanoylascorbic acid of Example 2, the stability was evaluated in the following manner for odor and coloring when stored at 50 ° C. for 4 weeks. As comparative products, magnesium ascorbate phosphate, ascorbic acid, and 3-O-glyceryl ascorbic acid were used.

Figure 2011079772
Figure 2011079772

試験例4 [乳化安定性試験]
実施例3の2−O−グリセリル−6−O−ヘキサデカノイルアスコルビン酸、比較例としてアスコルビン酸、アスコルビン酸リン酸マグネシウムおよび2−O−グリセリルアスコルビン酸を用いて表4に示す処方の乳化組成物をそれぞれ調製した。調製物はそれぞれ50mLのスクリュー管に入れて密栓し、50℃で1週間保管した。1週間後の乳化組成物の外観を10人のパネラーに下記の評価基準で評価させた。
Test Example 4 [Emulsification stability test]
2-O-glyceryl -6-O-hexadecanoyl-ascorbic acid of Example 3, ascorbic acid as a comparative example, emulsion composition of the formulation shown in Table 4 by using ascorbic acid magnesium phosphate and 2-O-glyceryl ascorbic acid Each product was prepared. Each preparation was sealed in a 50 mL screw tube and stored at 50 ° C. for 1 week. The appearance of the emulsified composition after 1 week was evaluated by 10 panelists according to the following evaluation criteria.

(判定基準)
○:テープストリッピング10〜15回目まで試料を検出
△:テープストリッピング3〜9回目まで試料を検出
×:テープストリッピング1〜2回目まで試料を検出、または検出せず
(Criteria)
○: Sample was detected until tape stripping 10 to 15 times Δ: Sample was detected until tape stripping 3 to 9 times ×: Sample was detected or not detected until tape stripping 1 to 2 times

Figure 2011079772
Figure 2011079772

評価基準
3: サンプル塗布前よりも角質水分量が15%以上上昇した
2: サンプル塗布前よりも角質水分量が0より多く、15%未満上昇した
1: サンプル塗布前後で角質水分量が変化しなかった、若しくは減少した
この評価結果に基づき、下記のように分類した。その結果を表6に示す。
○:10人の総合点が25以上
△:10人の総合点が16〜24
×:10人の総合点が15以下
Evaluation criteria 3: The amount of keratin moisture increased by 15% or more than before sample application 2: The amount of horny water increased by more than 0 and less than 15% than before sample application 1: The amount of horny water changed before and after sample application Based on the evaluation results that were absent or decreased, the classification was as follows. The results are shown in Table 6.
○: Total score of 10 people is 25 or more Δ: Total score of 10 people is 16-24
×: Total score of 10 people is 15 or less

Figure 2011079772
Figure 2011079772

表5に示すように、本発明のグリセリルアスコルビン酸アシル化誘導体は、比較品のアスコルビン酸及びその誘導体と比較して、皮膚へ塗布した際の保湿性に優れる。また、グリセリルアスコルビン酸と比較して、短時間で角質水分量が上昇している。本発明のグリセリルアスコルビン酸アシル化誘導体はグリセリルアスコルビン酸に疎水性が付与され皮膚への透過性にも優れる。さらに、油への溶解性に優れ、皮膚への浸透性に優れ、3−O−セチルアスコルビン酸と比較して、in vivoでの試験において高い保湿効果を示している。in vitroで保湿性を有するグリセリルアスコルビン酸と同様に、グリセリル基由来の保湿効果を得られている。
As shown in Table 5, the glyceryl ascorbic acid acylated derivative of the present invention is superior in moisture retention when applied to the skin, as compared with the comparative product ascorbic acid and its derivatives. Moreover, compared with glyceryl ascorbic acid, the amount of stratum corneum increases in a short time . The glyceryl ascorbic acid acylated derivative of the present invention is imparted with hydrophobicity to glyceryl ascorbic acid and has excellent permeability to the skin. Furthermore, excellent solubility in oil, superior in permeability to the skin, compared to 3-O-cetyl ascorbic acid shows a high moisturizing effect in tests in in vivo. Similar to glyceryl ascorbic acid having moisturizing properties in vitro , a moisturizing effect derived from a glyceryl group is obtained.

Claims (6)

下記一般式(I)で表されるグリセリルアスコルビン酸アシル化誘導体またはその塩。
Figure 2011079772
[式中、RおよびRは、水素原子、R−O−CH−CH(OH)−CH、またはR −CO−で表される基であり( は、水素原子またはR −CO−で表される基を示し、R は、水素原子、炭素数1〜22のアルキル基または炭素数2〜22のアルケニル基を示す)、RおよびRは、R−で表される基(Rは前記に同じ)である。但し、RとRの少なくとも一つはR−O−CH−CH(OH)−CH−で表される基であり、RとRが共に水素原子のときは、RおよびRの少なくとも一つは、 −CO−O−CH −CH(OH)−CH −で表される基であるか、またはR およびR の一方がHO−CH −CH(OH)−CH −で表される基でありかつ他方はR −CO−で表される基(R は前記に同じ)である。]
The acylated derivative of glyceryl ascorbic acid represented by the following general formula (I) or a salt thereof.
Figure 2011079772
[Wherein, R 1 and R 2 are groups represented by a hydrogen atom, R 5 —O—CH 2 —CH (OH) —CH 2, or R 6 —CO— ( R 5 represents hydrogen An atom or a group represented by R 6 —CO— , wherein R 6 represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms or an alkenyl group having 2 to 22 carbon atoms ), R 3 and R 4 are A group represented by R 5 — (R 5 is the same as above). However, at least one of R 1 and R 2 is a group represented by R 5 —O—CH 2 —CH (OH) —CH 2 —, and when R 3 and R 4 are both hydrogen atoms, At least one of 1 and R 2 is a group represented by R 6 —CO—O—CH 2 —CH (OH) —CH 2 —, or one of R 1 and R 2 is HO—CH 2. A group represented by —CH (OH) —CH 2 — and the other is a group represented by R 6 —CO— (R 6 is as defined above) . ]
前記一般式(I)中の、Rが水素原子であり、Rが水素原子またはR−CO−で表される基である、請求項1に記載のグリセリルアスコルビン酸アシル化誘導体またはその塩。 The glyceryl ascorbic acid acylated derivative according to claim 1, wherein R 3 in the general formula (I) is a hydrogen atom, and R 4 is a hydrogen atom or a group represented by R 6 —CO—, or a derivative thereof. salt. 前記一般式(I)中の、R、RおよびRのいずれか一つだけの基の中に CO−基を有する、請求項1に記載のグリセリルアスコルビン酸アシル化誘導体またはその塩。 In the general formula (I), R 1, only within a group one of R 2 and R 4 R 6 - has the CO- group, glyceryl ascorbic acid acylating derivative according to claim 1 or Its salt. 前記一般式(I)中の、 とR の少なくとも一つはR −O−CH −CH(OH)−CH −で表される基であり、かつR が水素原子であり、R がR −CO−である請求項2に記載のグリセリルアスコルビン酸アシル化誘導体またはその塩。 In the general formula (I) , at least one of R 1 and R 2 is a group represented by R 5 —O—CH 2 —CH (OH) —CH 2 —, and R 5 is a hydrogen atom. The glyceryl ascorbic acid acylated derivative or a salt thereof according to claim 2 , wherein R 4 is R 6 -CO- . 前記一般式(I)中の、Rが、R−O−CH−CH(OH)−CH−で表される基であり、かつRが水素原子であり、Rが水素原子である、請求項4に記載のグリセリルアスコルビン酸アシル化誘導体またはその塩。 In the general formula (I), R 1 is a group represented by R 5 —O—CH 2 —CH (OH) —CH 2 —, R 5 is a hydrogen atom, and R 2 is hydrogen. The glyceryl ascorbic acid acylated derivative or salt thereof according to claim 4 , which is an atom. グリセリルアスコルビン酸と、炭素数1〜23の酸塩化物、カルボン酸もしくはカルボン酸アミド、炭素数2〜46の酸無水物、又はカルボン酸部分の炭素数が1〜23のカルボン酸エステルとを反応させることを特徴とする請求項1ないし5のいずれか1項に記載のグリセリルアスコルビン酸アシル化誘導体またはその塩の製造方法。 Reaction of glyceryl ascorbic acid with an acid chloride having 1 to 23 carbon atoms, a carboxylic acid or carboxylic acid amide, an acid anhydride having 2 to 46 carbon atoms, or a carboxylic acid ester having 1 to 23 carbon atoms in the carboxylic acid moiety The method for producing a glyceryl ascorbyl acylated derivative or a salt thereof according to any one of claims 1 to 5, wherein:
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