JP4966859B2 - Antidiabetic - Google Patents

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JP4966859B2
JP4966859B2 JP2007537734A JP2007537734A JP4966859B2 JP 4966859 B2 JP4966859 B2 JP 4966859B2 JP 2007537734 A JP2007537734 A JP 2007537734A JP 2007537734 A JP2007537734 A JP 2007537734A JP 4966859 B2 JP4966859 B2 JP 4966859B2
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isocartamidine
cartamidine
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inhibitory activity
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智 熊沢
積 渡邉
義治 伊藤
敦子 江澤
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智 熊沢
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/26Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3
    • C07D311/28Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only
    • C07D311/322,3-Dihydro derivatives, e.g. flavanones
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/08Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

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  • Diabetes (AREA)
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Description

本発明は、抗糖尿病活性を有するフラバノン化合物であるカルタミジンおよびイソカルタミジンに関する。   The present invention relates to cartamidine and isocartamidine which are flavanone compounds having anti-diabetic activity.

近年、摂取カロリーの過多が生活習慣病の原因となっていることから、摂取カロリーの制限が求められている。代表的な生活習慣病のうち、特に糖尿病は我が国において最も患者数が多い生活習慣病の一つである。糖尿病の特徴は、食事により摂取された炭水化物由来の糖分が消化管から吸収されて血中に入ったときに、血糖値が高過ぎたり、高血糖状態が持続したりすることであり、これら炭水化物の消化を抑え、生体内でエネルギーに変換されるのを阻止することは糖尿病など生活習慣病の予防・治療に有効であると考えられる。   In recent years, excessive calorie intake has been a cause of lifestyle-related diseases, and therefore, restriction of calorie intake has been demanded. Among typical lifestyle-related diseases, diabetes is one of the most common lifestyle-related diseases in Japan. The characteristic of diabetes is that when sugar derived from carbohydrates taken from meals is absorbed from the digestive tract and enters the blood, the blood sugar level is too high or the hyperglycemic state persists. It is considered to be effective for preventing and treating lifestyle-related diseases such as diabetes, by suppressing the digestion and inhibiting the conversion into energy in vivo.

ここで、本発明に関連のある事項として、フラバノン化合物であるカルタミジンおよびイソカルタミジンについて、以下説明する。   Here, as a matter relevant to the present invention, cartamidine and isocartamidine which are flavanone compounds will be described below.

カルタミジン(carthamidin)は、化学式C15126のフラバノン化合物(4',5,6,7-tetrahydroxyflavanone)であり、ナリンゲニン(naringenin;4',5,7-trihydroxyflavanone)の6位に水酸基を有する化合物、いわゆる6−ヒドロキシナリンゲニン(6-hydroxynaringenin)のことである。
イソカルタミジン(isocarthamidin)は、化学式C15126のフラバノン化合物(4',5,7,8-tetrahydroxyflavanone)であり、いわゆる8−ヒドロキシナリンゲニン(8-hydroxynaringenin)のことである。
Carthamidin is a flavanone compound (4 ', 5,6,7-tetrahydroxyflavanone) having the chemical formula C 15 H 12 O 6 and a hydroxyl group at the 6-position of naringenin (4', 5,7-trihydroxyflavanone). It is a so-called 6-hydroxynaringenin.
Isocarthamidin is a flavanone compound (4 ′, 5,7,8-tetrahydroxyflavanone) having the chemical formula C 15 H 12 O 6 , and is a so-called 8-hydroxynaringenin.

カルタミジン及びイソカルタミジンに関して、例えば、以下の文献がある。
特許文献1には、イソカルタミジンの消臭効果が、特許文献2〜4にはこれらの化合物の抗酸化効果が、特許文献5にはこれらの化合物のコガネバナからの抽出例が、それぞれ開示されている。
また、非特許文献では、紅花の紅色色素などを酸加水分解することで生成することが知られており、例えば、非特許文献1、非特許文献2などではそれらの合成法が報告されている。また、非特許文献3には、コガネバナの葉抽出物から分離精製された例が報告されている。その他、非特許文献4、非特許文献5などには、抗酸化効果が示されている。
特開昭61−268259号公報 特開2002−281995号公報 特開2002−293779号公報 特開2003−102430号公報 ロシア特許2228673号 Bull. Chem. Soc. Jpn., Vol.51 (12) 3627-3630(1970) Chem. Lett.915-916(1973) 薬学雑誌96(3)381-383(1976) 日本食品科学工学会誌 Vol.51 (3) 181-184 (2004) Biosci. Biotechnol. Biochem., 67(7) 1443-1450 (2003)
Regarding cartamidine and isocartamidine, for example, there are the following documents.
Patent Document 1 discloses the deodorizing effect of isocartamidine, Patent Documents 2 to 4 disclose the antioxidant effect of these compounds, and Patent Document 5 discloses an extraction example of these compounds from Cognevana. ing.
In addition, in non-patent literature, it is known that the red pigment of safflower is generated by acid hydrolysis. For example, Non-patent literature 1, Non-patent literature 2 and the like report their synthesis methods. . Non-Patent Document 3 reports an example of separation and purification from a leaf extract of Scutellaria. In addition, Non-Patent Document 4, Non-Patent Document 5, and the like show an antioxidant effect.
Japanese Patent Laid-Open No. 61-268259 JP 2002-281995 A Japanese Patent Laid-Open No. 2002-293779 JP 2003-102430 A Russian patent 2228673 Bull. Chem. Soc. Jpn., Vol. 51 (12) 3627-3630 (1970) Chem. Lett. 915-916 (1973) Pharmaceutical Journal 96 (3) 381-383 (1976) Japanese Journal of Food Science and Technology Vol.51 (3) 181-184 (2004) Biosci. Biotechnol. Biochem., 67 (7) 1443-1450 (2003)

本発明の目的は、新規な抗糖尿病剤を提供することである。   An object of the present invention is to provide a novel antidiabetic agent.

本発明者らは上記事情に鑑み、種々の炭水化物消化酵素を阻害する物質を種々検討した結果、植物中に含まれ、種々の炭水化物消化酵素阻害に優れたフラバノン化合物であるカルタミジンおよびイソカルタミジンを見出した。   In view of the above circumstances, the present inventors have studied various substances that inhibit various carbohydrate digestive enzymes. As a result, the present inventors have found that cartamidine and isocartamidine, which are flavanone compounds that are contained in plants and excellent in inhibiting various carbohydrate digestive enzymes, are present. I found it.

従来、これらのフラバノン化合物は、消臭効果、抗酸化効果を発揮するに止まっており、食後血糖値上昇抑制作用に関しては、現在まで知られていなかった。それに対し、本発明では、これらのフラバノン化合物が食後の過血糖状態を抑制して糖尿病の予防及び治療に優れた効果を有することを新規に見出した。   Conventionally, these flavanone compounds have only been able to exert a deodorizing effect and an antioxidant effect, and the postprandial blood glucose level inhibitory action has not been known so far. On the other hand, in the present invention, it has been newly found that these flavanone compounds have an excellent effect in the prevention and treatment of diabetes by suppressing the hyperglycemic state after meal.

そこで、本発明では、フラバノン化合物であり、「化1」の構造を有するカルタミジン(1)、及び/又は、同じくフラバノン化合物であり「化2」の構造を有するイソカルタミジン(2)を有効成分として含有する抗糖尿病剤を提供する。   Therefore, in the present invention, cartamidine (1) which is a flavanone compound and has a structure of “Chemical Formula 1” and / or isocartamidine (2) which is also a flavanone compound and has a structure of “Chemical Formula 2” is an active ingredient. As an antidiabetic agent.

なお、カルタミジン及びイソカルタミジンの好適な適用量は、年齢、症状等によって異なるが、例えば、成人1回につき1〜500mg程度、好ましくは5〜300mg程度、である。   In addition, although the suitable application amount of a cartamidine and an isocartamidine changes with age, a symptom, etc., it is about 1-500 mg per adult, Preferably it is about 5-300 mg.

本発明に係る化合物は、糖尿病の予防及び治療に有効である。   The compound according to the present invention is effective for the prevention and treatment of diabetes.

実施例1では、カルタミジン及びイソカルタミジンについて、α−グルコシダーゼ阻害活性の測定を行った。   In Example 1, the α-glucosidase inhibitory activity was measured for cartamidine and isocartamidine.

実験手順の概要は次の通りである。
ラットアセトン粉末(SIGMA社製)に9倍量の0.05Mマレイン酸緩衝液(pH6.0)を加え、超音波処理後、3000rpm・10分間遠心、上清を酵素液とした。マレイン酸緩衝液(pH6.0)に所定の濃度で溶解させたカルタミジン又はイソカルタミジン50μLに、マレイン酸緩衝液(pH6.0)に溶解した2%ショ糖50μLを加え、37℃・5分間プレインキュベート後、マレイン酸緩衝液(pH6.0)で2倍希釈した酵素液を50μL加え、37℃・60分間反応した。反応終了後、95℃・10分間で酵素を失活させ、15000rpm・10分間遠心後、上清中のグルコース量をSYNCHRON CX3Δ(BECKMAN社製)にて測定した。
また、コントロールとして前記試料溶液の代わりにマレイン酸緩衝液(pH6.0)のみの溶液を使用して同様に測定した。
The outline of the experimental procedure is as follows.
Nine times the amount of 0.05 M maleate buffer (pH 6.0) was added to rat acetone powder (manufactured by SIGMA), sonicated, centrifuged at 3000 rpm for 10 minutes, and the supernatant was used as the enzyme solution. 50 μL of 2% sucrose dissolved in maleate buffer (pH 6.0) is added to 50 μL of cartamidine or isocartamidine dissolved in maleate buffer (pH 6.0) at a predetermined concentration, and the temperature is 37 ° C. for 5 minutes. After pre-incubation, 50 μL of an enzyme solution diluted 2-fold with maleic acid buffer solution (pH 6.0) was added and reacted at 37 ° C. for 60 minutes. After completion of the reaction, the enzyme was inactivated at 95 ° C. for 10 minutes, centrifuged at 15000 rpm for 10 minutes, and the amount of glucose in the supernatant was measured with SYNCHRON CX3Δ (manufactured by BECKMAN).
Moreover, it measured similarly using the solution of only maleic acid buffer (pH 6.0) instead of the said sample solution as control.

結果を表1に示す。
表中の数値(下段)は、酵素阻害活性を示す値(%)であり、各サンプルを用いた場合におけるグルコース量を、マレイン酸緩衝液を用いた場合(コントロール)におけるグルコース量で除することにより算出した。

Figure 0004966859
The results are shown in Table 1.
The numerical values in the table (lower) are values (%) indicating enzyme inhibitory activity, and the amount of glucose when using each sample is divided by the amount of glucose when using maleate buffer (control). Calculated by
Figure 0004966859

その結果、表1に示す通り、カルタミジン及びイソカルタミジンは、それぞれ、優れたα−グルコシダーゼ阻害活性を有することがわかった。   As a result, as shown in Table 1, it was found that cartamidine and isocartamidine each have excellent α-glucosidase inhibitory activity.

実施例2では、カルタミジン及びイソカルタミジンについて、マルターゼ阻害活性の測定を行った。   In Example 2, maltase inhibitory activity was measured for cartamidine and isocartamidine.

実験手順の概要は次の通りである。
ラットアセトン粉末(SIGMA社製)に9倍量の0.05Mマレイン酸緩衝液(pH6.0)を加え、超音波処理後、3000rpm・10分間遠心、上清を酵素液とした。マレイン酸緩衝液(pH6.0)に所定の濃度で溶解させたカルタミジン又はイソカルタミジン50μLに、マレイン酸緩衝液(pH6.0)に溶解した2%マルトース50μLを加え、37℃・5分間プレインキュベート後、0.05Mマレイン酸緩衝液(pH6.0)で20倍希釈した酵素液を50μL加え、37℃・60分間反応した。反応終了後、95℃・10分間で酵素を失活させ、15000rpm・10分間遠心後、上清中のグルコース量をSYNCHRON CX3Δ(BECKMAN社製)にて測定した。
また、コントロールとして前記試料溶液の代わりにマレイン酸緩衝液(pH6.0)のみの溶液を使用して同様に測定した。
The outline of the experimental procedure is as follows.
Nine times the amount of 0.05 M maleate buffer (pH 6.0) was added to rat acetone powder (manufactured by SIGMA), sonicated, centrifuged at 3000 rpm for 10 minutes, and the supernatant was used as the enzyme solution. 50 μL of 2% maltose dissolved in maleate buffer solution (pH 6.0) is added to 50 μL of cartamidine or isocartamidine dissolved in maleate buffer solution (pH 6.0) at a predetermined concentration. After the incubation, 50 μL of an enzyme solution diluted 20-fold with 0.05 M maleate buffer (pH 6.0) was added and reacted at 37 ° C. for 60 minutes. After completion of the reaction, the enzyme was inactivated at 95 ° C. for 10 minutes, centrifuged at 15000 rpm for 10 minutes, and the amount of glucose in the supernatant was measured with SYNCHRON CX3Δ (manufactured by BECKMAN).
Moreover, it measured similarly using the solution of only maleic acid buffer (pH 6.0) instead of the said sample solution as control.

結果を表2に示す。
表中の数値(下段)は、前記と同様、酵素阻害活性を示す値(%)であり、各サンプルを用いた場合におけるグルコース量を、マレイン酸緩衝液を用いた場合(コントロール)におけるグルコース量で除することにより算出した。

Figure 0004966859
The results are shown in Table 2.
The numerical value (lower part) in the table is a value (%) indicating enzyme inhibitory activity as described above, and the amount of glucose when using each sample is the amount of glucose when using maleate buffer (control). It was calculated by dividing by.
Figure 0004966859

その結果、表2に示す通り、カルタミジン及びイソカルタミジンは、それぞれ、優れたマルターゼ阻害活性を有することがわかった。   As a result, as shown in Table 2, it was found that cartamidine and isocartamidine each have excellent maltase inhibitory activity.

Claims (3)

フラバノン化合物であり下記「化1」の構造を有するカルタミジン(1)、及び/又は、同じくフラバノン化合物であり下記「化2」の構造を有するイソカルタミジン(2)を有効成分として含有する抗糖尿病剤。
Figure 0004966859
Figure 0004966859
Anti-diabetic containing flavanone compound and cartamidine (1) having the structure of the following "chemical formula 1" and / or isocartamidine (2) having the structure of the following "chemical formula 2" and the same flavanone compound as an active ingredient Agent.
Figure 0004966859
Figure 0004966859
α−グルコシダーゼ阻害活性又は抑制活性を有することを特徴とする請求の範囲第1項記載の抗糖尿病剤。  The antidiabetic agent according to claim 1, which has α-glucosidase inhibitory activity or suppressive activity. マルターゼ阻害活性又は抑制活性を有することを特徴とする請求の範囲第1項又は第2記載の抗糖尿病剤。  The antidiabetic agent according to claim 1 or 2, which has maltase inhibitory activity or suppressive activity.
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JP5539665B2 (en) * 2009-04-16 2014-07-02 智 熊沢 Anti-diabetic agents and their use
CN105555287A (en) * 2013-06-19 2016-05-04 捷通国际有限公司 Plant-based inhibitors of ketohexokinase for the support of weight management
JP7239135B2 (en) * 2018-05-29 2023-03-14 丸善製薬株式会社 α-Glucosidase activity inhibitor and blood sugar elevation inhibitor

Citations (5)

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JPS5759813A (en) * 1980-09-29 1982-04-10 Takeda Chem Ind Ltd Alpha-glucosidase inhibitor
JPS57200335A (en) * 1981-06-02 1982-12-08 Takeda Chem Ind Ltd N-substituted derivative of valiolamine, its preparation and use
JPH03240725A (en) * 1990-02-15 1991-10-28 Senjiyu Seiyaku Kk Maillard reaction inhibitor
JP2002524480A (en) * 1998-09-15 2002-08-06 コリア インスティテュート オブ サイエンス アンド テクノロジー Bioflavonoids as hypoglycemic agents
RU2228673C1 (en) * 2003-06-20 2004-05-20 Московский государственный университет прикладной биотехнологии Antioxidant-containing food product from baikal scull-cap extract

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JP2000102383A (en) * 1998-09-30 2000-04-11 Nisshin Sugar Mfg Co Ltd Alfa-glucosidase inhibitor containing extract of perilla frutescens crispa as active ingredient, sugar composition, and food and drink, containing the inhibitor
JP2000229874A (en) * 1999-02-09 2000-08-22 Nippon Synthetic Chem Ind Co Ltd:The Alpha-glucosidase inhibitor
JP2006514947A (en) * 2002-12-17 2006-05-18 カウンシル オブ サイエンティフィック アンド インダストリアル リサーチ New antioxidants from natural sources

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759813A (en) * 1980-09-29 1982-04-10 Takeda Chem Ind Ltd Alpha-glucosidase inhibitor
JPS57200335A (en) * 1981-06-02 1982-12-08 Takeda Chem Ind Ltd N-substituted derivative of valiolamine, its preparation and use
JPH03240725A (en) * 1990-02-15 1991-10-28 Senjiyu Seiyaku Kk Maillard reaction inhibitor
JP2002524480A (en) * 1998-09-15 2002-08-06 コリア インスティテュート オブ サイエンス アンド テクノロジー Bioflavonoids as hypoglycemic agents
RU2228673C1 (en) * 2003-06-20 2004-05-20 Московский государственный университет прикладной биотехнологии Antioxidant-containing food product from baikal scull-cap extract

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