JP6367120B2 - 神経難病のmr画像診断薬 - Google Patents
神経難病のmr画像診断薬 Download PDFInfo
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- JP6367120B2 JP6367120B2 JP2014556404A JP2014556404A JP6367120B2 JP 6367120 B2 JP6367120 B2 JP 6367120B2 JP 2014556404 A JP2014556404 A JP 2014556404A JP 2014556404 A JP2014556404 A JP 2014556404A JP 6367120 B2 JP6367120 B2 JP 6367120B2
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- QJIJQNUQORKBKY-UHFFFAOYSA-N piperidin-1-ium;benzoate Chemical compound C1CCNCC1.OC(=O)C1=CC=CC=C1 QJIJQNUQORKBKY-UHFFFAOYSA-N 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 238000002603 single-photon emission computed tomography Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- JADVWWSKYZXRGX-UHFFFAOYSA-M thioflavine T Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C1=[N+](C)C2=CC=C(C)C=C2S1 JADVWWSKYZXRGX-UHFFFAOYSA-M 0.000 description 1
- 125000005424 tosyloxy group Chemical group S(=O)(=O)(C1=CC=C(C)C=C1)O* 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011830 transgenic mouse model Methods 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical class OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
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Description
(A) 式(I)の化合物又はその塩と
(B) 式(2):
とを組み合わせてなる。
第1表
(1)式(1)の化合物又はその塩を有効成分とするアミロイドβ蛋白、タウ蛋白、α-シヌクレイン又はTDP-43が蓄積する疾患の画像診断薬。
(2)前記疾患がアルツハイマー病、前頭側頭型認知症、進行性核上性麻痺、パーキンソン病、レビー小体病又は筋萎縮性側索硬化症である、(1)に記載の画像診断薬。
(3)式(1a)若しくは式(I)の化合物又はその塩を有効成分とするアミロイドβ蛋白が蓄積する疾患の画像診断薬。
(4)アミロイドβ蛋白が蓄積する疾患がアルツハイマー病である、(3)に記載の画像診断薬。
(5)画像診断がMRIである、(1)〜(4)のいずれかに記載の画像診断薬。
(6)式(1a)若しくは式(I)の化合物又はその塩を有効成分とする脳をはじめとする組織中のアミロイドβ蛋白又は老人斑の染色薬。
(7)アミロイドβ蛋白の蛍光染色薬である、(6)に記載の染色薬。
(8)(1)に記載の画像診断薬を用いる、アミロイドβ蛋白、タウ蛋白、α-シヌクレイン又はTDP-43が蓄積する疾患の診断方法。
(9)(3)に記載の画像診断薬を用いる、蛋白のβシート構造が病因又は病因の一部となる疾患の診断方法。
(10)(6)に記載の染色薬を用いて組織中のアミロイドβ蛋白又は老人斑を染色する方法。
(11)アミロイドβオリゴマーを検出するために用いられる画像診断薬であって、(A) 式(I)の化合物又はその塩と(B) 式(2)の化合物又はその塩とを組み合わせてなる、画像診断薬。
(12)画像診断がMRIである、(11)に記載の画像診断薬。
(13)(11)に記載の画像診断薬を用いる、アミロイドβオリゴマーの検出方法。
(1)2-(4-ジメチルアミノスチリル)-6-ヒドロキシベンゾオキサゾール430 mg (1.53 mmol)、トリフェニルホスフィン960 mg (3.67 mmol)、17-(4'-p-トルエンスルホニルオキシ)-3,6,9,12,15-ペンタオキサヘプタデカン-1-オール1.60 g (3.67 mmol)をDMF (10 mL)に溶解し、氷冷中、攪拌しながらアゾジカルボン酸イソプロピルの1.9Mトルエン溶液を2.25 mL滴下した。滴下終了後、反応液を室温で6時間攪拌した後、反応液を水にあけて、酢酸エチル(150 mL)で抽出した。抽出液を水洗した後、飽和炭酸水素ナトリウム水溶液、ついで飽和食塩水で洗浄してから無水硫酸マグネシウムで乾燥した。ロータリーエバポレーターで減圧下に溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:酢酸エチル)により精製すると、6-[3',6',9',12',15'-ペンタオキサ-17'-(4'-p-トルエンスルホニルオキシ)ヘプタデカニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール780 mgが油状物として得られた。
1HNMR (CDCl3):δ3.03 (3H, s), δ3.04 (3H, s), δ3.6〜4.0 (26H), δ3.91 (2H, q, J=9Hz), δ4.17 (2H, q, J=5Hz), 6.2〜7.1 (5H), δ7.4〜7.9 (4H)
19FNMR (CDCl3):δ-75.55 (t, J=9Hz)
(1)窒素気流中、60%水素化ナトリウム48 mg (1.2 mmol)をフラスコに量り取り、氷冷しながら17-(2H-テトラヒドロピラン-2'-イルオキシ)-3,6,9,12,15-ペンタオキサヘプタデカン-1-オール440 mg (1.2 mmol)のTHF (1 mL)溶液を滴下し、滴下終了後、反応液を室温に0.5時間攪拌した。ついで、6-[3'-オキサ-5'-(4'-p-トルエンスルホニルオキシ)ペンタニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール(特許文献3)522 mg (1.0 mmol)のTHF (2.5 mL)溶液を滴下して、室温で5時間攪拌した。反応液を水にあけ、酢酸エチル(100 mL)で抽出し、抽出液を少量の水、ついで飽和食塩水で洗浄した後、無水硫酸マグネシウムで乾燥した。減圧下にロータリーエバポレーターで溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:酢酸エチル)により精製し、6-[3',6',9',12',15',18',21'-ヘプタオキサ-23'-(2H-テトラヒドロピラン-2'-イルオキシ)トリコサニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール580 mgを油状物として得た。
1HNMR (CDCl3):δ1.4〜1.9 (6H), δ3.03 (6H, s), δ4.63 (1H, t J=3Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ3.03 (6H, s), δ3.5〜3.8 (28H), δ3.90 (2H, m), δ4.17 (2H, m), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ2.44 (3H, s), δ3.03 (3H, s), δ3.5〜3.8 (26H), δ3.89 (2H, m), δ4.20 (4H, m), δ6.6〜7.9 (13H, arom.)
1HNMR (CDCl3):δ3.03 (6H, s), δ3.5〜3.8 (26H), δ3.89 (2H, m), δ3.99 (2H, m), δ4.17 (2H, m), δ4.51 (1H, sep. J=6Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
19FNMR (CDCl3): δ-75.52 (d, J=6Hz)
窒素気流中、60%水素化ナトリウム30 mg (0.73 mmol)をフラスコに量り取り、氷冷しながら2-(2',2',2'-トリフルオロエトキシ)エタノール105 mg (0.73 mmol)のTHF (0.5 mL)溶液を滴下し、滴下終了後、反応液を1時間、室温で攪拌した。ついで、[合成例2]の(3)で得られた6-[3',6',9',12',15',18',21'-ヘプタオキサ-23'-(4'-p-トルエンスルホニルオキシ)トリコサニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール115 mg (0.146 mmol)のTHF (0.5 mL)溶液を滴下し、滴下終了後、反応液を室温で16時間攪拌した。反応終了後、反応液を酢酸エチル(50 mL)で希釈し、酢酸エチル溶液を少量の水で洗った後、飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下にロータリーエバポレーターで溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:メタノール:ジクロロメタン=1:50)により精製して、6-(3',6',9',12',15',18',21',24',27'-ノナオキサ-29',29',29'-トリフルオロノナコサニルオキシ)-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール(trans体、cis体の混合物) 80 mgを油状物として得た。
1HNMR (CDCl3):δ3.03 (6H,s), δ3.5〜3.8 (32H), δ3.88 (2H, m), δ3.91 (2H, q, J=9Hz), δ4.17 (2H, q, J=5Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
19FNMR (CDCl3):δ-75.55 (t, J=9Hz)
(1)窒素気流中、60%水素化ナトリウム70 mg (1.75 mmol)をフラスコに量り取り、氷冷しながら、11-(2H-テトラヒドロピラン-2'-イルオキシ)-3,6,9-トリオキサウンデカン-1-オール490 mg (1.75 mmol)のDMF (2 mL)溶液を滴下し、滴下終了後、反応液を1時間室温で攪拌した。ついで、[合成例1]の(1)で得られた6-[3',6',9',12',15'-ペンタオキサ-17'-(4'-p-トルエンスルホニルオキシ)ヘプタデカニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール820 mg (1.17 mmol)のDMF (2 mL)溶液を滴下し、滴下終了後、反応液を室温で12時間攪拌した。反応液を水にあけ、酢酸エチルで抽出した。抽出液を少量の水で洗った後、飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下にロータリーエバポレーターを用いて溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:メタノール:酢酸エチル=1:50)により精製し、6-[3',6',9',12',15',18',21',24',27'-ノナオキサ-29'-(2H-テトラヒドロピラン-2'-イルオキシ)ノナコサニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール514 mgを油状物として得た。
1HNMR (CDCl3):δ1.4〜1.9 (6H), δ3.03 (6H, s), δ4.63 (1H, m), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ3.03 (6H, s), δ3.90 (2H, m), δ4.17 (2H, m), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ2.44 (3H, s), δ3.03 (6H, s), δ3.89 (2H, m), δ4.12 (2H,q,J=7Hz), δ6.6〜7.1 (5H, arom.), δ7.34 (2H, d, J=8Hz), δ7.80 (2H, d, J=8Hz), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ3.03 (6H, s), δ3.90 (2H, m),δ3.91 (2H, q, J=9Hz), δ4.17 (2H, q, J=5Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
19NMR (CDCl3):δ-75.56 (t, J=9Hz)
(1)窒素気流中、60%水素化ナトリウム45 mg (1.1 mmol)をフラスコに量り取り、氷冷しながら、3,6,9,12,15-ペンタオキサ-17-(2H-テトラヒドロピラン-2'-イルオキシ)ヘプタデカン-1-オール410 mg (1.1 mmol)のDMF (1.5 mL)溶液を滴下し、滴下終了後、反応液を室温で1時間攪拌した。ついで、[合成例1]の(1)で得られた6-[3',6',9',12',15'-ペンタオキサ-17'-(4'-p-トルエンスルホニルオキシ)ヘプタデカニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール650 mg (0.93 mmol)のDMF (1.5 mL)溶液を滴下して、室温で16時間攪拌した。反応液を減圧下にロータリーエバポレーターで濃縮乾固して得られた残渣を酢酸エチルで抽出した。不溶物を濾過して除き、濾液を無水硫酸マグネシウムで乾燥した後、溶媒を減圧下に留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:メタノール:ジクロロメタン=1:40)により精製し、6-[3',6',9',12',15',18',21',24',27',30',33'-ウンデカオキサ-35'-(2H-テトラヒドロピラン-2'-イルオキシ)ペンタトリアコンタニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール580 mgを油状物として得た。
1HNMR (CDCl3):δ1.4〜1.9 (6H), δ3.03 (6H, s), δ4.63 (1H, t, J=3Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ3.03 (6H, s), δ3.90 (2H, m), δ4.18 (2H, m), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
1HNMR (CDCl3):δ2.45 (3H, s), δ3.03 (6H, s), δ6.6〜7.9 (13H, arom.)
1HNMR (CDCl3):δ2.81 (2H, t, J=5Hz), δ3.03 (6H, s), δ3.89 (2H, m), δ3.94 (2H, s), δ4.17 (2H, m), δ6.6〜7.1 (5H, arom.), δ7.76 (1H, s), δ7.83 (2H, s), δ7.4〜7.9 (4H, arom.)
窒素気流中、60%水素化ナトリウム15 mg (0.38 mmol)をフラスコに量り取り、氷冷しながら、2-(2',2',2'-トリフルオロエトキシ)エタノール55 mg (0.38 mmol)のDMF (0.2 mL)溶液を滴下し、滴下終了後、反応液を室温で1時間攪拌した。ついで、[合成例5]の(3)で得られた6-[3',6',9',12',15',18',21',24',27',30',33'-ウンデカオキサ-35'-(4'-p-トルエンスルホニルオキシ)ペンタトリアコンタニルオキシ]-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール73 mg (0.076 mmol)のDMF (0.2 mL)溶液を滴下して、反応液を室温で21時間攪拌した。減圧下に反応液を濃縮し、残渣を酢酸エチルで抽出した。ロータリーエバポレーターで減圧下に酢酸エチルを留去した後、真空ポンプでDMFを留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:メタノール:ジクロロメタン=1:50)により精製し、6-(3',6',9',12',15',18',21',24',27',30',33',36',39'-トリデカオキサ-41',41',41'-トリフルオロヘンテトラコンタニルオキシ)-2-(4'-ジメチルアミノスチリル)ベンゾオキサゾール(trans体、cis体の混合物) 44 mgを油状物として得た。
1HNMR (CDCl3):δ3.03 (6H, s), δ3.73 (2H, q, J=9Hz), δ4.17 (2H, q, J=4.5Hz), δ6.6〜7.1 (5H, arom.), δ7.4〜7.9 (4H, arom.)
(1)窒素気流中、60%水素化ナトリウム1.20 g (30 mmol)をフラスコに量り取り、氷冷しながら2-(2',2',2'-トリフルオロエトキシ)エタノール3.31 g (23 mmol)のDMF (5 mL)溶液を滴下し、滴下終了後、反応液を室温で1時間攪拌した。ついで、1-p-トルエンスルホニルオキシ-17-(2H-テトラヒドロピラン-2'-イル)オキシ-3,6,9,12,15-ペンタオキサヘプタデカン5.98 g (11.5 mmol)のDMF (10 mL)溶液を滴下して、室温で18時間攪拌した。反応液を濃縮乾固して得られる残渣を酢酸エチルに溶かし、酢酸エチル溶液を少量の飽和食塩水で洗浄した後、無水硫酸マグネシウムで乾燥した。ロータリーエバポレーターで、減圧化に溶媒を留去して得られた残渣をシリカゲルカラムクロマトグラフィー(溶離液:メタノール:ジクロロメタン=1:50)により精製し、1,1,1-トリフルオロ-23-(2H-テトラヒドロピラン-2'-イル)オキシ-3,6,9,12,15,18,21-ヘプタオキサトリコサン4.76 gを油状物として得た。
1HNMR (CDCl3) : δ3.91 (2H, q, J=9Hz), δ4.63 (1H, m)
19FNMR (CDCl3) : δ-75.56 (t, J=9Hz)
1HNMR (CDCl3) : δ2.45 (3H, s), δ3.91 (2H, q, J=9Hz), δ7.34 (2H, d, J=8Hz), δ7.80 (2H, d, J=8Hz)
19FNMR (CDCl3) : δ-75.55 (t, J=9Hz)
1HNMR (CDCl3) : δ3.90 (2H, q, J=9Hz), δ5.22 (2H, s), δ9.83 (1H, s)
19FNMR (CDCl3) : δ-75.54 (t, J=9Hz)
1HNMR (CDCl3) : δ1.23 (6H, t, J=7Hz), δ3.91 (2H, q, J=9Hz), δ5.11 (2H, s), δ5.41 (1H, s), δ6.88 (1H, d, J=8Hz), δ6.97 (1H, dd, J=8Hz, 2Hz), δ7.06 (1H, d, J=2Hz), δ7.3-7.5 (5H)
19FNMR (CDCl3) : δ-75.55 (t, J=9Hz)
1HNMR (CDCl3) : δ3.90 (2H, q, J=9Hz), δ7.00 (1H, d, J=8Hz), δ7.4-7.5 (2H), δ9.79 (1H, s)
19FNMR (CDCl3) : δ-75.55 (t, J=9Hz)
1HNMR (CDCl3) : δ3.90 (2H, q, J=9Hz), δ6.25 (1H, d, J=16Hz), δ6.91 (1H, d, J=8Hz), δ7.12 (1H, dd, J=8Hz, 2Hz), δ7.27 (1H, d, J=2Hz), δ7.68 (1H, d, J=16Hz)
19FNMR (CDCl3) : δ-75.52 (t, J=9Hz)
1HNMR (CDCl3) : δ3.87 (2H, q, J=9Hz), δ6.19 (1H, d, J=16Hz), δ6.57 (1H,dd, J=8Hz, 2Hz), δ6.75 (1H, d, J=2Hz), δ6.81 (1H, d, J=8Hz), δ6.84 (1H, d, J=8Hz), δ6.9-7.1 (2H), δ7.46 (1H, d, J=16Hz)
19FNMR (CDCl3) : δ-75.50 (t, J=9Hz)
化合物8
化合物1を10 mg量り取り、80%のTween-80を0.125 ml加え、温めながら硝子棒で溶解した。ついで生理食塩水を0.875 ml加えて投与溶液(10 mg/ml)を調製した。本投与液をペントバルビタールナトリウム麻酔をかけたアルツハイマー病遺伝子改変モデルマウス(APP/PS1)と正常なワイルドマウス(Wild)に、尾静脈から0.2 kg/ml/minで総量200 mg/kg投与した。アルツハイマー病遺伝子改変モデルマウス(APP/PS1)は、アミロイド前駆体蛋白とプレセニリン1のダブルトランスジェニックマウス(APP/PS1, Jackson研究所から購入して繁殖した)を用いた。
上記試験例1で実施した19F-MRIスキャンしたマウス脳を採取し、4%-ホルマリン溶液で2日間固定した後、15%-ショ糖溶液に移してクリオプロテクションし、クリオスタットで厚さ20μmの切片を作成した。次に、本切片をウサギ抗ヒトアミロイドβポリクローナル抗体(IBL社, 0.2μg/ml)と4℃で一晩反応させた。さらに、本検体をPBS-Tで10分間3回洗浄した後、Alexa647抗ウサギIgG抗体(Molecular Probes社、500倍希釈)と室温下4時間反応した。本検体をPBS-Tで10分間3回洗浄した後、Cresyl Violetで1分間対比染色し、更に蒸留水で洗浄後グリセロール封入を行なったものを検体とし、倒立型蛍光顕微鏡にて老人斑への化合物の結合能を観察した。なお、化合物像はDAPIフィルターで、アミロイドβ蛋白像はCy5フィルターで測定した。また、正常マウスに対しても同様の処理を実施した。
QCM装置のセンサー部にAβオリゴマー又はAβ線維を固定し、ガラス容器に入れたPBSに浸漬した。次に、化合物8又は化合物1を終濃度10μMになるように加え、その直後から周波数の変化を記録した。
化合物1と化合物8をそれぞれ10 mg量り取り、80%のCremophor-ELを0.25 ml加え、温めながら溶解した。ついで生理食塩水を0.75 ml加えて投与溶液(10 mg/ml)を調製した。本投与液をペントバルビタールナトリウムで麻酔をかけたAPP/PS1マウスに、尾静脈から0.2 kg/ml/minで総量200 mg/kg投与した。
化合物1、化合物7及び化合物9を10 mMとなるようにDMSOに溶解した。ペントバルビタールナトリウムで麻酔をかけたマウスを脳定位固定装置に固定して、頭皮を切開し、頭蓋骨を露出させた。次にブレグマから前方0.1 mm、左方及び右方2.3 mmにドリルで穴をあけた。続いて、薬液を満たしたハミルトンシリンジのニードルを上記の穴から硬膜下2.5 mmに挿入し、薬液を2μL注入した。10分間静置した後、ニードルを引き抜いた。左の穴には化合物9を、右の穴には化合物1又は化合物7を注入した。直後にペントバルビタールナトリウムを過量投与することによりマウスを安楽死させ、MR装置を用いて化合物の画像化試験を実施した。画像化にはCSI法による20分間の測定によって得られたデータを使用した。
Claims (6)
- 請求項1に記載の化合物又はその塩を有効成分とするアミロイドβ蛋白が蓄積する疾患の画像診断薬。
- アミロイドβ蛋白が蓄積する疾患がアルツハイマー病である、請求項2に記載の画像診断薬。
- 画像診断がMRIである、請求項2又は3に記載の画像診断薬。
- 請求項1に記載の化合物又はその塩を有効成分とする脳をはじめとする組織中のアミロイドβ蛋白又は老人斑の染色薬。
- アミロイドβオリゴマーを検出するために用いられる画像診断薬であって、
(A)請求項1に記載の化合物又はその塩と
(B) 式(2):
(式中、R6a及びR6bはそれぞれ独立に水素原子、アルキル、アセチル又はメトキシカルボニルであり、R7はそれぞれ独立にフッ素原子、CHF2-、CF3-、CHF2O-又はCF3O-であり、R8はそれぞれ独立に水素原子又はフッ素原子であり、Aはアルキル、シアノ、カルボキシル、アルコキシカルボニル又はR9-(CH2)q-であり、R9はヒドロキシ、カルボキシ、シアノ、アセチルオキシ、アルコキシカルボニル、アルコキシアルコキシ、ヒドロキシアルコキシ又はCONR10R11であり、R10及びR11はそれぞれ独立に水素原子又はアルキルであり、qは1〜5の整数である)で表されるクルクミン誘導体又はその塩
とを組み合わせてなる、画像診断薬。
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| PCT/JP2014/050005 WO2014109296A1 (ja) | 2013-01-09 | 2014-01-06 | 神経難病のmr画像診断薬 |
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| JP3877754B2 (ja) | 2003-10-30 | 2007-02-07 | 株式会社同仁化学研究所 | アミロイド親和性化合物 |
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