JP5210154B2 - C−グリコシド誘導体とl−プロリンとの共結晶 - Google Patents
C−グリコシド誘導体とl−プロリンとの共結晶 Download PDFInfo
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- JP5210154B2 JP5210154B2 JP2008508716A JP2008508716A JP5210154B2 JP 5210154 B2 JP5210154 B2 JP 5210154B2 JP 2008508716 A JP2008508716 A JP 2008508716A JP 2008508716 A JP2008508716 A JP 2008508716A JP 5210154 B2 JP5210154 B2 JP 5210154B2
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
- C07D407/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a carbon chain containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/16—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/38—Heterocyclic compounds having sulfur as a ring hetero atom
- A61K31/381—Heterocyclic compounds having sulfur as a ring hetero atom having five-membered rings
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- A—HUMAN NECESSITIES
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- A61P3/00—Drugs for disorders of the metabolism
- A61P3/04—Anorexiants; Antiobesity agents
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P5/00—Drugs for disorders of the endocrine system
- A61P5/48—Drugs for disorders of the endocrine system of the pancreatic hormones
- A61P5/50—Drugs for disorders of the endocrine system of the pancreatic hormones for increasing or potentiating the activity of insulin
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
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Description
(1)標準測定:「MAC Science MXP18TAHF22」を用い、管球:Cu、管電流:200mA、管電圧:40kV、サンプリング幅:0.020°、走査速度:3°/min、波長:1.54056Å、測定回折角範囲(2θ):3〜40°の条件で測定した。
「TA Instrument TA 5000」を用い、室温〜300℃(10℃/min)、N2(50ml/min)、アルミニウム製サンプルパンの条件で測定した。
本発明共結晶は、下記式に示すように、特許文献1の実施例138に記載されたC−グリコシド誘導体Aのフリー体と、L−プロリンを使用して製造することができる。即ち、(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトール(公知化合物A)とL−プロリンを、約1:1のモル比で、適当な溶媒中で加熱攪拌し、反応液を攪拌しながら徐々に冷却後、析出した固体をろ取する。適当な溶媒で洗浄することで得られた固体を乾燥した後、適当な溶媒を用いて再結晶操作を行い、析出した結晶をろ取する。適当な溶媒で洗浄後、乾燥することで、(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトールとL−プロリンの共結晶(本発明共結晶)を得ることができる。
アルゴン気流下、−78℃に冷却した(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−2,3,4,6−テトラ−O−ベンジル−D−グルシトール(2.5g)のジクロロメタン(50mL)溶液に、ペンタメチルベンゼン(4.85g)、三塩化ホウ素の1.0M n−ヘプタン溶液(16.3mL)を加え同温度で2時間攪拌した。反応終了後、メタノール(100mL)を加えて過剰の試薬を分解し、溶媒を減圧留去した。残渣をシリカゲルカラムクロマトグラフィー(クロロホルム−メタノール)にて精製し、得られた残渣をエタノールと水の混合溶媒に懸濁し加熱還流することで溶解させた後に徐々に室温まで冷却することで再結晶を行った。得られた結晶をろ取し、加熱条件下減圧乾燥して、(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトール(公知化合物A)(1.1g)を白色結晶として得た。得られた公知化合物Aの示差走査熱量計分析図(DSC分析図)を図1に、粉末X線回析図を図2に示す。
L−プロリンの示差走査熱量計分析図(DSC分析図)を図3に、粉末X線回析図を図4に示す。
(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトール(公知化合物A)(2.0g)のエタノール(25mL)懸濁液にL−プロリン(570mg)を加え、100℃で30分間攪拌した。反応液を徐々に室温まで冷却後、析出した固体をろ取し、エタノールで洗浄した。得られた固体を加熱条件下減圧乾燥した後、エタノールと水の混合溶媒に懸濁し加熱還流することで溶解させた後に徐々に冷却し、氷冷下で1時間攪拌した。析出した結晶をろ取し、エタノールで洗浄後、加熱条件下減圧乾燥して、(1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトールとL−プロリンの共結晶(本発明共結晶)(1.7g)を得た。得られた本発明共結晶の示差走査熱量計分析図(DSC分析図)を図5に、粉末X線回析図を図6に示す。
温度:25℃、測定範囲:相対湿度2〜88%の条件で連続的に粉末X線回折を測定した。その結果、公知化合物Aは、相対湿度の変化に伴う回折角のずれが確認された(図7参照)。また、フリー体の多くの結晶化条件から得られた結晶は、室温、低湿度から非化学量論的な包接水和物を可逆的に形成する物理的に不安定な結晶であった。
「VTI SGA−100」を用い、温度:25℃、測定範囲:相対湿度5〜95%、測定間隔:相対湿度5%の条件で重量変化を測定した。その結果、公知化合物Aは、低湿度から物理的な変化を伴う非化学量論的な吸湿性を示した。特に、相対湿度25〜35%から急激な重量の増加を示した(図9参照)。また、粒子径や晶癖によって吸湿曲線が多少異なるものの、25℃、相対湿度5〜95%で3.2%の水分を脱吸着するものが確認されている。
(試験例1):[ヒトNa+−グルコース共輸送体(ヒトSGLT2)活性阻害作用確認試験]
1)ヒトSGLT2発現ベクターの作製
まず、Superscript II(Gibco社製)とランダムヘキサマーを用いて、ヒト腎臓由来の全RNA(Clontech社製)から1本鎖cDNAを逆転写した。次に、これを鋳型とし、Pyrobest DNAポリメラーゼ(Takara社製)を用いたPCR反応により、ヒトSGLT2(Wells R.G. et al., Am. J. Physiol., 1992, 263(3)F459)をコードするDNA断片を増幅した(このDNA断片の5’側にHind IIIサイトが、3’側にEcoRIサイトが導入されるようなプライマーを用いた)。
ヒトSGLT2発現ベクターをLipofectamine2000(Gibco社製)を用いてCHO−K1細胞に導入した。遺伝子導入後、細胞をペニシリン(50IU/mL。大日本製薬社製)、ストレプトマイシン(50μg/mL。大日本製薬社製)、Geneticin(40μg/mL。Gibco社製)と10%ウシ胎児血清を含むHam’s F12培地(日水製薬社製)中で、37℃、5%CO2存在下で2週間ほど培養し、Geneticin耐性のクローンを得た。これらのクローンの中からヒトSGLT2を安定発現する細胞を、定常レベルに対するナトリウム存在下の糖取り込みの比活性を指標に選択し、取得した(糖取り込みの測定方法の詳細は次項以降参照)。
ヒトSGLT2安定発現CHO細胞の培地を除去し、1ウェルあたり前処置用緩衝液(塩化コリン140mM、塩化カリウム2mM、塩化カルシウム1mM、塩化マグネシウム1mM、2−[4−(2−ヒドロキシエチル)−1−ピペラジニル]エタンスルホン酸10mM、トリス(ヒドロキシメチル)アミノメタン5mMを含む緩衝液pH7.4)を100μL加え、37℃で20分間静置した。
実験動物として非絶食のKK-Ayマウス(日本クレア、雄性)を用いた。本発明共結晶を0.5%メチルセルロース水溶液に懸濁させ、1mg/10mLの濃度とした。マウスの体重を測定し、本発明共結晶の懸濁液を10mL/kgの用量で強制経口投与し、対照群には0.5%メチルセルロース水溶液のみを投与した。1群当たりの匹数は6匹とした。採血は、薬物投与直前及び薬物投与後1、2、4及び8時間において尾静脈から行い、血糖値を、グルコースCIIテストワコー(和光純薬)を用いて測定した。血糖降下作用強度は、本発明共結晶投与群の0から8時間での経時的血糖値より、trapezoidal法を用いて血糖値−時間曲線下面積(AUC)を算出し、対照群のそれに対する降下の割合(%)で評価した。その結果、本発明共結晶は強い血糖降下作用を示した。
Claims (10)
- (1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトールと、L−プロリンとの共結晶。
- (1S)−1,5−アンヒドロ−1−[3−(1−ベンゾチエン−2−イルメチル)−4−フルオロフェニル]−D−グルシトールと、L−プロリンとのモル比が、1:1である請求項1に記載の共結晶。
- 示差走査熱量計分析(DSC分析)で201〜213℃に吸熱ピークを有する、請求項1に記載の共結晶。
- 粉末X線回折で2θ(°)4.14、8.98、12.4、16.5、17.5、18.7、20.5、及び21.5にピークを有する、請求項1に記載の共結晶。
- 示差走査熱量計分析(DSC分析)で201〜213℃に吸熱ピークを有するとともに、粉末X線回折で2θ(°)4.14、8.98、12.4、16.5、17.5、18.7、20.5、及び21.5にピークを有する、請求項1に記載の共結晶。
- 請求項1〜5のいずれか一項に記載の共結晶を有効成分として含有する医薬組成物。
- 請求項1〜5のいずれか一項に記載の共結晶を用いて製造した医薬組成物。
- 製薬学的に許容される担体を更に含有する請求項6又は7に記載の医薬組成物。
- 糖尿病治療剤である請求項6〜8のいずれか一項に記載の医薬組成物。
- 糖尿病治療剤の製造のための請求項1〜5のいずれか一項に記載の共結晶の使用。
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NO20084659L (no) | 2009-01-02 |
CA2649022A1 (en) | 2007-10-11 |
AU2007232763B2 (en) | 2011-07-28 |
WO2007114475A1 (ja) | 2007-10-11 |
KR20120025001A (ko) | 2012-03-14 |
CN101443328B (zh) | 2012-07-25 |
CA2649022C (en) | 2012-05-29 |
TW200811152A (en) | 2008-03-01 |
AU2007232763A1 (en) | 2007-10-11 |
KR20090015912A (ko) | 2009-02-12 |
TWI370818B (en) | 2012-08-21 |
JPWO2007114475A1 (ja) | 2009-08-20 |
BRPI0710581A2 (pt) | 2011-08-16 |
CN101443328A (zh) | 2009-05-27 |
IL194512A0 (en) | 2009-08-03 |
EP2009010A4 (en) | 2012-06-13 |
KR101243039B1 (ko) | 2013-03-20 |
RU2008143362A (ru) | 2010-05-10 |
ZA200809201B (en) | 2009-12-30 |
EP2009010A1 (en) | 2008-12-31 |
RU2408595C2 (ru) | 2011-01-10 |
US20090143316A1 (en) | 2009-06-04 |
US8097592B2 (en) | 2012-01-17 |
MX2008012705A (es) | 2008-10-15 |
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