JP6959204B2 - 新規セラミドそれを含む皮膚保湿剤およびセラミド組成物の製造方法 - Google Patents
新規セラミドそれを含む皮膚保湿剤およびセラミド組成物の製造方法 Download PDFInfo
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- JP6959204B2 JP6959204B2 JP2018174159A JP2018174159A JP6959204B2 JP 6959204 B2 JP6959204 B2 JP 6959204B2 JP 2018174159 A JP2018174159 A JP 2018174159A JP 2018174159 A JP2018174159 A JP 2018174159A JP 6959204 B2 JP6959204 B2 JP 6959204B2
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- Prior art keywords
- ceramide
- added
- water
- glucosylceramide
- skin
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- 229940106189 ceramide Drugs 0.000 title claims description 80
- YDNKGFDKKRUKPY-JHOUSYSJSA-N C16 ceramide Natural products CCCCCCCCCCCCCCCC(=O)N[C@@H](CO)[C@H](O)C=CCCCCCCCCCCCCC YDNKGFDKKRUKPY-JHOUSYSJSA-N 0.000 title claims description 67
- ZVEQCJWYRWKARO-UHFFFAOYSA-N ceramide Natural products CCCCCCCCCCCCCCC(O)C(=O)NC(CO)C(O)C=CCCC=C(C)CCCCCCCCC ZVEQCJWYRWKARO-UHFFFAOYSA-N 0.000 title claims description 67
- VVGIYYKRAMHVLU-UHFFFAOYSA-N newbouldiamide Natural products CCCCCCCCCCCCCCCCCCCC(O)C(O)C(O)C(CO)NC(=O)CCCCCCCCCCCCCCCCC VVGIYYKRAMHVLU-UHFFFAOYSA-N 0.000 title claims description 67
- 239000000203 mixture Substances 0.000 title claims description 66
- CRJGESKKUOMBCT-VQTJNVASSA-N N-acetylsphinganine Chemical compound CCCCCCCCCCCCCCC[C@@H](O)[C@H](CO)NC(C)=O CRJGESKKUOMBCT-VQTJNVASSA-N 0.000 title claims description 64
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000004909 Moisturizer Substances 0.000 title description 17
- 230000001333 moisturizer Effects 0.000 title description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 150000002305 glucosylceramides Chemical class 0.000 claims description 24
- JQWHASGSAFIOCM-UHFFFAOYSA-M sodium periodate Chemical compound [Na+].[O-]I(=O)(=O)=O JQWHASGSAFIOCM-UHFFFAOYSA-M 0.000 claims description 18
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- 239000012279 sodium borohydride Substances 0.000 claims description 8
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- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 4
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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 60
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- 238000000034 method Methods 0.000 description 17
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 10
- 150000004665 fatty acids Chemical group 0.000 description 10
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- WWUZIQQURGPMPG-KRWOKUGFSA-N sphingosine Chemical group CCCCCCCCCCCCC\C=C\[C@@H](O)[C@@H](N)CO WWUZIQQURGPMPG-KRWOKUGFSA-N 0.000 description 9
- WWUZIQQURGPMPG-UHFFFAOYSA-N (-)-D-erythro-Sphingosine Natural products CCCCCCCCCCCCCC=CC(O)C(N)CO WWUZIQQURGPMPG-UHFFFAOYSA-N 0.000 description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
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- 239000011734 sodium Substances 0.000 description 4
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- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
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Description
コメから抽出されたグルコシルセラミドを用意し、
水と混和可能な有機溶媒を含む水性媒体中で、前記グルコシルセラミドと過ヨウ素酸ナトリウムとを反応させて前記グルコシルセラミドをアルデヒド中間体に酸化する工程と、
前記水と混和可能な有機溶媒中で、アルデヒド中間体と水素化ホウ素ナトリウムとを反応させてアルデヒド中間体を還元する工程と、
アルデヒド中間体の還元反応物に、酸および水を添加して加水分解反応を行い、下記式(II):
を含む、セラミド組成物の製造方法を提供する。
本明細書においてセラミドとは、スフィンゴ脂質の一種であり、スフィンゴシンと脂肪酸がアミド結合したものである。また、セラミドにグルコースが結合したものをグルコシルセラミドという。本発明の1つの実施形態として、下記式(I)で表されるセラミドが挙げられる。
本実施形態で使用するグルコシルセラミドは、典型的にはコメ由来のグルコシルセラミドであるが、他の植物等由来のグルコシルセラミドであってもよく、例えば、ブドウ、サクランボ、ユズ、オリーブ、シソ、シークワーサー、プルーン、小麦、小麦胚芽、黍、大豆、ゴマ、ピーナツ、トウモロコシ、ほうれん草、コンニャク芋、パイナップル、てん菜、砂糖大根、温州みかん、ピーチ、キノコ類(舞茸、タモギタケなど)、牛乳等の抽出物が挙げられる。植物原料からグルコシルセラミドを抽出する方法は公知であり、例えば、特開2001−097983号公報などに記載の方法により抽出するか、あるいは市販のコメ由来のグルコシルセラミド(例えば、長良サイエンス株式会社等)を使用することができる。
下記式(II):
本発明の他の実施形態では、上記セラミドまたは上記の製造方法により得られるセラミド組成物を有効成分として含む皮膚保湿剤を提供する。後述する実施例3で得られたセラミドはTLCおよび液体クロマトグラフィーでほぼ単一のスポットおよびピークとなる。また、本実施形態の皮膚保湿剤は、外用剤組成物などの化粧品、健康食品などの食品組成物、またはそれらの中間原料として、粉末状、液状、顆粒状、錠剤状、ペースト状、乳液状、クリーム状、ゲル状、カプセル状、およびエアゾール状等の形態にすることができ、最終的な製品を構成する上で最適な形状を任意に選択することができる。
一般食品の他に、表皮の角化改善又は皮膚の保湿機能や皮膚バリア機能改善・維持、毛髪のハリ若しくはコシの付与、及び毛髪の感触改善等、セラミドの産生促進により治療、予防又は改善しうる疾患又は状態の治療、予防又は改善等をコンセプトとしてその旨を表示した飲食品、すなわち、健康食品、機能性食品、病者用食品及び特定保健用食品なども包含される。健康食品、機能性食品、病者用食品及び特定保健用食品は、具体的には、細粒剤、錠剤、顆粒剤、散剤、カプセル剤、シロップ剤、液剤、流動食等の各種製剤形態として使用することができ、これら製剤のために使用することができる。製剤形態の食品組成物は、前記有効成分と、食品として許容できる担体、例えば適当な賦形剤(例えば、でん粉、加工でん粉、乳糖、ブドウ糖、水等)等とを混合した後、慣用の手段を用いて製造することができる。さらに、食品組成物は、スープ類、ジュース類、乳飲料、茶飲料、コーヒー飲料、ココア飲料、ゼリー状飲料などの液状食品組成物、プリン、ヨーグルトなどの半固形食品組成物、パン類、うどんなどの麺類、クッキー、チョコレート、キャンディ、ガム、せんべいなどの菓子類、ふりかけ、バター、ジャムなどのスプレッド類等の形態もとりうる。また、食品には、飼料も含まれる。
含水グルコシルセラミド(64.0g、固形分10.9%)に蒸留水(48mL)、エタノール(70mL)に懸濁させた。過ヨウ素酸ナトリウム(11.6g)を26〜27℃で23分間かけて添加し、室温で13時間撹拌した。グリセロール(12.3g)を23〜31℃で25分間かけて添加した後、水(250mL)と酢酸エチル(500mL)を添加し、分液した。有機層を蒸留水(250mL)で洗浄し、水層を合わせ、酢酸エチル(500mL)で抽出した。有機層を合わせ、無水硫酸ナトリウム(150g)を加え、撹拌し、ろ過後、酢酸エチルで洗浄した。50℃で減圧下濃縮することにより茶色アモルファス、化合物2(6.22g)を得た。
含水グルコシルセラミド(64.0g、固形分10.9%)に蒸留水(48mL)、エタノール(70mL)に懸濁させた。過ヨウ素酸ナトリウム(11.6g)を24〜30℃で4分間かけて添加し、室温で18時間撹拌した。L-アスコルビン酸ナトリウム(9.56g)/蒸留水(38mL)を20〜30℃で20分間かけて添加した後(よう素でんぷん紙で無色)、50℃で減圧下濃縮し、180gとした。(茶色くなり、ワックス状物析出)水(100mL)と酢酸エチル(100mL)を添加し、分液した後、水層より酢酸エチル(50mL)で抽出した。有機層を合わせ、無水硫酸ナトリウム(7.5g)を加え、撹拌し、ろ過後、酢酸エチルで洗浄した。減圧下濃縮することにより茶色アモルファス、化合物2(7.43g)を得た。
化合物2(760mg)をエタノール30mLに溶解させ、水素化ホウ素ナトリウム(120mg)を加えた。室温で3時間の撹拌し、6N塩酸(2mL)を加えた後、水(15mL)を加えた。反応系が酸性であることをpH試験紙で確認(pH1程度)し、室温で終夜撹拌を行なった。反応液は、5%炭酸水素ナトリウム水溶液で中和した後、100mLの炭酸水素ナトリウム水溶液を加え、酢酸エチル200mLで抽出を行なった。酢酸エチル層は、飽和食塩水で洗浄した後、無水硫酸ナトリウムで乾燥させた。有機層はロータリーエバポレーターで濃縮乾固させ、茶色ワックス状の化合物4(600mg)を得た。得られた目的物の一部をさらにシリカゲルカラムにより精製しNMR測定に供した。1H−NMR(500MHz,CD3OD)δ0.88−0.91(m,6H),1.23−1.37(m),1.38−1.43(m,2H),1.51−1.58(m,1H),1.68−1.75(m,1H),1.96−2.15(m8H),3.63(dd,J=4.0,11.5,1H),3.78(dd,J=5.5,11.0),3.83−3.86(m,1H),3.99(dd,J=3.8,7.8,1H),4.07−4.09(m,1H),5.36−5.52(m,3H),5.7−5.75(m,1H)。
アルゴン気流下、化合物2(1.00g)をエタノール(35.6mL)に溶解し、水素化ホウ素ナトリウム(138mg)を室温で添加した。室温で3時間撹拌した後、6N塩酸(2.44mL)を注加し、2時間後、水(18mL)を注加した。室温で14時間撹拌した後、6N水酸化ナトリウム水溶液で中和し(2.1mL使用)、さらに5%炭酸水素ナトリウム水溶液(4mL)を加えた。(pH=8.1)50℃で減圧下濃縮し、22.4gとし、酢酸エチル(18mL×2)で抽出した。有機層を10%食塩水(18mL)で洗浄し、無水硫酸ナトリウム(1.9g)を加え、撹拌、ろ過後、酢酸エチルで洗浄した。ろ液を50℃で減圧下濃縮した後、エタノール(10mL)に溶解し、再度、減圧下濃縮することにより、茶色ワックス状物、化合物4(719mg)を得た。
アルゴン気流下、化合物2(1.00g)をエタノール(18mL)に溶解し、水素化ホウ素ナトリウム(138mg)を室温で添加した。室温で3時間撹拌した後、6N塩酸(2.44mL)を注加し、20時間撹拌した。6N水酸化ナトリウム水溶液で中和し(2.0mL使用、pH=8.1)、水(9mL)で希釈した。さらに5%炭酸水素ナトリウム水溶液(7mL)および水(38mL)を加え、酢酸エチル(54mL×2)で抽出した。有機層を10%食塩水(54mL)で洗浄し、無水硫酸ナトリウム(11.0g)を加え、撹拌、ろ過後、酢酸エチルで洗浄した。ろ液を50℃で減圧下濃縮した後、エタノール(10mL)に溶解し、再度、減圧下濃縮することにより、茶色ワックス状物、化合物4(673mg)を得た。
アルゴン気流下、化合物2(1.00g)をエタノール(18mL)に溶解し、水素化ホウ素ナトリウム(138mg)を室温で添加した。室温で3時間撹拌した後6N塩酸(2.44mL)を注加し、1時間後、水(9mL)を注加した。室温で22時間撹拌した後、6N水酸化ナトリウム水溶液で中和し(2.0mL使用、pH=8.8)、水(45mL)添加後、酢酸エチル(54mL×2)で抽出した。有機層を10%食塩水(54mL)で洗浄し、無水硫酸ナトリウム(22.0g)を加え、撹拌、ろ過後、酢酸エチルで洗浄した。ろ液を50℃で減圧下濃縮した後、エタノール(10mL)に溶解し、再度、減圧下濃縮することにより、茶色ワックス状物、化合物4(655mg)を得た。
含水グルコシルセラミド(64.0g、固形分10.9%)を水(48mL)、エタノール(70mL)に懸濁させた。過ヨウ素酸ナトリウム(11.6g)を29〜30℃で5分間かけて添加し、室温で23時間撹拌した。L−アスコルビン酸ナトリウム(6.38g、32.2mmol)/市水(10mL)を24〜30℃で15分間かけて添加した後、50℃で減圧下濃縮し、133gとした。水(150mL)と酢酸エチル(100mL)を添加し、分液した後、水層より酢酸エチル(100mL)で抽出した。有機層を合わせ、無水硫酸ナトリウム(10.0g)を加え、撹拌、ろ過後、酢酸エチルで洗浄した。ろ液を50℃で減圧下濃縮し、19.5gとした。エタノール(67mL)を加え、減圧下濃縮し、19.4gとした。さらにエタノール(67mL)を加え、減圧下濃縮し、化合物2の溶液を19.1gとした。化合物2の溶液にエタノール(92.3g)を加え(エタノールの合計134mL相当)、水素化ホウ素ナトリウム(1.03g)を18〜30℃で4分間かけて添加した。22〜30℃で3時間撹拌した後、6N塩酸(18.1mL)を注加し(22℃→27℃)、21時間撹拌した。水(69mL)で希釈し、6N水酸化ナトリウム水溶液で中和した後(14.2mL使用、pH=6.0)、5%炭酸水素ナトリウム水溶液(20mL、pH=8.0)を加え、50℃で減圧下濃縮し、123gとした。酢酸エチル(134mL)で2回抽出した後(ハルツ発生)、合わせた有機層を10%食塩水(134mL)で洗浄した。有機層は、無水硫酸ナトリウム(13.4g)を加え、撹拌、ろ過後、酢酸エチルで洗浄したろ液を50℃で減圧下濃縮し、5.74gとした後、エタノール(77mL)に50℃で溶解し、再度、減圧下濃縮することにより、茶色ワックス状物、化合物4を5.28g得た。得られた化合物をHPLCにより分析した(カラム:Inertsil SIL−100A、5μm、4.6×150mm; A:CHCl3、B:95%CH3OH;Gradient:1%−25%、15分間)。
植物由来セラミドとして、実施例7で調製した化合物4を用いた。以下の表1に示す組成の表皮バリア改善試験用の試料1〜3を調製した。
試料1〜3(50μL)を3次元皮膚モデル(Labocyte Epimodel、J-TEC社製)のインサート内に添加し、3日間培養後、各ウエルの経皮水分蒸散量(TEWL:Trans Epidermal Water Loss)をTewitroTW24(インテグラル社製)にて測定し、基剤である試料1のTEWL値との比を算出した。
この算出した結果は、試料1を100としたとき、試料2は96.8、試料3は83.6であった。植物由来セラミドを含む試料3のみ、TEWL値の低下が認められ、植物由来セラミドには表皮バリアを改善する効果が示唆された。
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