JP2016521696A - 血栓溶解、抗血栓及びフリーラジカル消去の3つの活性を有する新規の化合物、その合成、ナノ構造と応用 - Google Patents
血栓溶解、抗血栓及びフリーラジカル消去の3つの活性を有する新規の化合物、その合成、ナノ構造と応用 Download PDFInfo
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Abstract
Description
Pro-Ala-AA (Q1)
AA-Ala-Pro (Q2)
ただし、AAは、L-Ala、L-Val、L-Trp、L-Tyr、L-Pro、L-Phe、Gly、L-Ser、L-Ile、L-Thr、L-Lys、L-Leu、L-Gln、L-Asn、L-Asp及びL-Gluからなる群から選ばれたものである。
ただし、AAは、L-Ala、L-Val、L-Trp、L-Tyr、L-Pro、L-Phe、Gly、L-Ser、L-Ile、L-Thr、L-Lys、L-Leu、L-Gln、L-Asn、L-Asp及びL-Gluからなる群から選ばれたものである。
一般式IIの化合物を提供し、
R1及びR2は同一又は異なるC1-4アルキル基を示す工程(1)と、
結合用基を少なくとも2つ有するリンカーアームT、及び血栓溶解活性を有するペプチドQを提供し、前記リンカーアームは第1の結合用基と第2の結合用基を有する工程(2)と、
適当な反応条件において、一般式IIの化合物のカルボキシル基と前記リンカーアームTの第1の結合用基を結合し、一般式IM-1化合物を形成する工程(3)と、
適当な反応条件において、前記血栓溶解活性を有するペプチドQの一端が前記リンカーアームTの第2の結合用基と結合するように、前記血栓溶解活性を有するペプチドQと一般式IM-1化合物を結合して、一般式Iの化合物を形成する工程(4)と、
を含む一般式Iの化合物の調製方法を提供することにある。
Pro-Ala-AA (Q1)
AA-Ala-Pro (Q2)
ただし、AAは、L-Ala、L-Val、L-Trp、L-Tyr、L-Pro、L-Phe、Gly、L-Ser、L-Ile、L-Thr、L-Lys、L-Leu、L-Gln、L-Asn、L-Asp及びL-Gluからなる群から選ばれたものである。
R1及びR2は同一又は異なるC1-4アルキル基を示す。例としては、まず3,4-ジヒドロキシ-L-フェニルアラニン(SM-1)と一般式SM-2化合物をトリフルオロ酢酸(TFA)に溶解させ、無水硫酸マグネシウムがある条件で、3,4-ジヒドロキシ-L-フェニルアラニンとSM-2に対してPictet-Spengler縮合を発生して一般式IIの化合物が得られる。
1)トリフルオロ酢酸(TFA)と無水硫酸マグネシウムがある条件で、3,4-ジヒドロキシ-L-フェニルアラニンとアセトンがPictet-Spengler縮合を発生し、3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-カルボン酸を生成する。
2)ジシクロヘキシルカルボジイミド(DCC)と1-ヒドロキシベンゾトリアゾール(HOBt)がある条件で、3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-カルボン酸が無水N,N-ジメチルホルムアミド(DMF)でHCl・Lys(Boc)-OBzlと縮合して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys(Boc)-OBzlを形成し、縮合反応中に随時にN-メチルモルホリン(NMM)によってpH=9を調節する。
3)塩化水素の酢酸エチル溶液で3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys(Boc)-OBzlに対してBocを除去して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys-OBzlが得られる。
4)DCCとHOBtがある条件でBoc-Proが無水テトラヒドロフランでTos・Ala-OBzlと縮合してBoc-Pro-Ala-OBzlを形成する。
5)エタノールでBoc-Pro-Ala-OBzlをBoc-Pro-Alaに水素化分解させる。
6)DCCとHOBtがある条件でBoc-Pro-Alaが無水テトラヒドロフランでAA-OBzlと縮合してBoc-Pro-Ala-AA-OBzl(AAがL-Ala、Gly、L-Phe、L-Val、L-Leu、L-Ile、L-Trp、L-Ser、L-Thr、L-Tyr、L-Lys(Z)、L-Pro、L-Asn及びL-Gln残基から選ばれる)を形成する。
7)エタノールで工程6のBoc-Pro-Ala-AA-OBzlをBoc-Pro-Ala-AAに水素化分解させる。
8)DCCとHOBtがある条件で、3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys-OBzlが無水DMFで工程6のBoc-Pro-Ala-AAと縮合して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-AA)-OBzl(AAの定義が工程6と同じである)を形成する。
9)DCCとHOBtがある条件で、3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys-OBzlが無水DMFでBoc-AA(OBzl)と縮合して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[Boc-AA(OBzl)]-OBzl(AAはL-Asp、L-Glu残基から選ばれる)を形成する。
10)塩化水素の酢酸エチル溶液で3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[Boc-AA(OBzl)]-OBzlに対してBocを除去して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[AA(OBzl)]-OBzl(AAの定義が工程9と同じである)が得られる。
11)DCCとHOBtがある条件で、3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[AA(OBzl)]-OBzlが無水DMFでBoc-Pro-Alaと縮合して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[Boc-Pro-Ala-AA(OBzl)]-OBzl(AAの定義が工程9と同じである)を形成する。
12)水素化分解とBoc除去により3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-AA)-OBzl(AAの定義が工程6と同じである)と3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys[Boc-Pro-Ala-AA(OBzl)]-OBzl(AAの定義が工程9と同じである)を脱保護して3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロイソキノリン-3-ホルミル-Lys(Pro-Ala-AA)が得られる。
実施例1 液相トランスペプチダーゼ反応通法
実施例2 Boc除去通法
実施例3 ベンジルエステル除去通法
実施例4 カルボベンゾキシ又はベンジルエステル基除去通法
実施例5 Boc-Proの調製
実施例6 Boc-Pro-Ala-OBzlの調製
実施例7 Boc-Pro-Alaの調製
実施例8 Boc-Pro-Ala-Ala-OBzlの調製
実施例9 Boc-Pro-Ala-Alaの調製
実施例10 Boc-Pro-Ala-Val-OBzlの調製
実施例11 Boc-Pro-Ala-Valの調製
実施例12 Boc-Pro-Ala-Trp-OBzlの調製
実施例13 Boc-Pro-Ala-Trpの調製
実施例14 Boc-Pro-Ala-Tyr-OBzlの調製
実施例15 Boc-Pro-Ala-Tyrの調製
実施例16 Boc-Pro-Ala-Phe-OBzlの調製
実施例17 Boc-Pro-Ala-Pheの調製
実施例18 Boc-Pro-Ala-Gly-OBzlの調製
実施例19 Boc-Pro-Ala-Glyの調製
実施例20 Boc-Pro-Ala-Ser-OBzlの調製
実施例21 Boc-Pro-Ala-Serの調製
実施例22 Boc-Pro-Ala-Ile-OBzlの調製
実施例23 Boc-Pro-Ala-Ileの調製
実施例24 Boc-Pro-Ala-Thr-OBzlの調製
実施例25 Boc-Pro-Ala-Thrの調製
実施例26 Boc-Pro-Ala-Lys(Z)-OBzlの調製
実施例27 Boc-Pro-Ala-Lys(Z)の調製
実施例28 Boc-Pro-Ala-Leu-OBzlの調製
実施例29 Boc-Pro-Ala-Leuの調製
実施例30 Boc-Pro-Ala-Gln-OBzlの調製
実施例31 Boc-Pro-Ala-Glnの調製
実施例32 Boc-Pro-Ala-Asn-OBzlの調製
実施例33 Boc-Pro-Ala-Asnの調製
実施例34 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-カルボン酸(1)の調製
実施例35 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc)-OBzl(2)の調製
実施例36 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys-OBzl(3A)の調製
実施例37 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Ala)-OBzl(4Aa)の調製
実施例38 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Val)-OBzl(4Ab)の調製
実施例39 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Trp)-OBzl(4Ac)の調製
実施例40 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Tyr)-OBzl(4Ad)の調製
実施例41 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Pro)-OBzl(4Ae)の調製
実施例42 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Phe)-OBzl(4Af)の調製
実施例43 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Gly)-OBzl(4Ag)の調製
実施例44 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Ser)-OBzl(4Ah)の調製
実施例45 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Ile)-OBzl(4Ai)の調製
実施例46 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Thr)-OBzl(4Aj)の調製
実施例47 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys[Boc-Pro-Ala-Lys(Z)]-OBzl(4Ak)の調製
実施例48 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Leu)-OBzl(4Al)の調製
実施例49 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Gln)-OBzl(4Am)の調製
実施例50 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Boc-Pro-Ala-Asn)-OBzl(4An)の調製
実施例 51 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys[Boc-Pro-Ala-Asp(OBzl)]-OBzl(4Ao)の調製
実施例52 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys[Boc-Pro-Ala-Glu(OBzl)]-OBzl(4Ap)の調製
実施例53 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Ala)(5Aa)の調製
ESI-MS(m/e):630 [M-H]-、IR(KBr):3221.1、3057.2、2983.8、2943.3、2362.8、1660.7、1546.9、1533.4、1448.5、1379.1、1240.2、1049.3、867.9、659.7、1HNMR(300MHz、D2O)δ/ppm=6.79(s、1H)、6.68(s、1H)、4.36-4.29(m、5H)、3.32-3.12(m、6H)、1.89(m、4H)、1.70(s、3H)、1.57(s、3H)、1.48(m、2H)、1.33(m、9H).
実施例54 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Val)(5Ab)の調製
実施例55 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Trp)(5Ac)の調製
実施例56 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Tyr)(5Ad)の調製
実施例57 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Pro)(5Ae)の調製
実施例58 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Phe)(5Af)の調製
実施例59 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Gly)(5Ag)の調製
実施例60 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Ser)(5Ah)の調製
実施例61 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Ile)(5Ai)の調製
実施例62 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Thr)(5Aj)の調製
実施例63 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Lys)(5Ak)の調製
ESI-MS(m/e):660 [M-H]-、IR(KBr):3853.7、3738.1、2956.8、2349.3、2017.5、1668.4、1537.3、1400.3、1257.6、1043.5、871.8、671.2.、1HNMR(300MHz、D2O)δ/ppm=6.80(s、1H)、6.69(s、1H)、4.45(m、1H)、4.35(m、1H)、4.29(m、1H)、4.18(m、2H)、3.73(m、2H)、3.22-3.13(m、8H)、3.09(m、4H)、2.95(m、1H)、1.93(m、6H)、1.74(m、9H)、1.58(m、6H)、1.47(m、2H)、1.32-1.27(m、16H)、1.18(m、2H).
実施例64 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Leu)(5Al)の調製
実施例65 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Gln)(5Am)の調製
実施例66 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Asn)(5An)の調製
実施例67 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Asp)(5Ao)の調製
実施例68 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(Pro-Ala-Glu)(5Ap)の調製
対照例1 3S-6,7-ジヒドロキシ-1,1-ジメチル-1,2,3,4-テトラヒドロ-イソキノリン-3-ホルミル-Lys(6)の調製
実験例1 本発明に係る化合物5Aa-pの静脈薬投与の血栓溶解活性に対する評価
1)評価方法
2)薬投与方法と用量
3)評価結果
(外)
で表示され、結果が表1に示された。データにより、0.1nmol/kgの用量で静脈に薬投与して化合物5Aa-pが血栓(生理食塩水との比較でp<0.01)を効果的に溶解させることができ、化合物5Aa、5Af、5Ag、5Ak、5Aoの血栓溶解活性が用量が20000U/kgであるウロキナーゼに相当することが判明された。血栓溶解活性が優れた5Aa、5Ad、5Af、5Ag、5Akにおける5Akの血栓溶解活性が一番強いため、更に用量依頼関係を評価した。
実験例2 本発明に係る化合物5Akの静脈薬投与の血栓溶解活性の用量効果関係に対する評価
実験例3 本発明に係る化合物5Aa-pの静脈薬投与の抗血栓活性に対する評価
1)評価方法
2)薬投与方法と用量
3)結果
(外)
で表示され、結果が表3に示された。データにより、0.1nmol/kgの用量で化合物5Akを静脈投与すれば、血栓形成(生理食塩水との比較でp<0.001)を効果的に抑制できことが判明され、活性の優れた5Akについて、更に、用量依存関係を評価した。
a)NSとの比較で、p<0.001。
実験例4 本発明に係る化合物5Akの静脈薬投与の抗血栓活性の用量効果関係に対する評価
1)評価方法
2)薬投与方法と用量
3)結果
実験例5 本発明に係る化合物5Akが卒中ラットへの治療作用に対する評価
1)評価方法
2)評価結果
実験例6 本発明に係る化合物5Aa-pフリーラジカル消去の活性に対する評価
1)ヒドロキシフリーラジカル活性の消去
2)NOフリーラジカル活性の消去
3)超酸化物陰イオンフリーラジカル活性の消去
実験例7 本発明に係る化合物5Aa-pの透過型電子顕微鏡による測定
実験例8 ラットが卒中になって4時間の後で1μmol/kgの5Akによる6回の連続的治療を受ける試験
実験例9 ラットが卒中になって6時間の後で1μmol/kgの5Akによる6回の連続的治療を受ける試験
実験例10 ラットが卒中になって24時間の後で1μmol/kgの5Akによる6回の連続的治療を受ける試験
実験例11 ラットが卒中になって6時間の後で2.5μmol/kgの5Akによる6回の連続的治療を受ける試験
実験例12 ラットが卒中になって24時間の後で2.5μmol/kgの5Akによる6回の連続的治療を受ける試験
実験例13 ラットが卒中になって24時間の後で5μmol/kgの5Akによる6回の連続的治療を受ける試験
Claims (18)
- 少なくとも1つの前記結合用基はアミノ基であり、且つ残りの結合用基はカルボキシル基又はアミノ基である請求項1に記載の化合物。
- 前記リンカーアームは、L-Lys、L-Asp又はL-Gluである請求項2に記載の化合物。
- 前記血栓溶解活性を有するペプチドは、PA(Pro-Ala)配列、PAK(Pro-Ala-Lys)配列、AKP(Ala-Lys-Pro)配列又はKAP(Lys-Ala-Pro)配列を含むオリゴペプチド、或いはPAK配列、AKP配列又はKAP配列を構造単位とした反復配列を含むペプチドからなる群から選ばれたものである請求項1に記載の化合物。
- 前記PA(Pro-Ala)配列を含むオリゴペプチドは、トリペプチドであり、且つ下記一般式Q1又はQ2を有し、
Pro-Ala-AA (Q1)
AA-Ala-Pro (Q2)
ただし、AAは、L-Ala、L-Val、L-Trp、L-Tyr、L-Pro、L-Phe、Gly、L-Ser、L-Ile、L-Thr、L-Lys、L-Leu、L-Gln、L-Asn、L-Asp及びL-Gluからなる群から選ばれたものである請求項4に記載の化合物。 - R1及びR2の何れもメチル基である請求項1に記載の化合物。
- 前記リンカーアームは、L-Lys、L-Asp又はL-Gluであり、且つ前記血栓溶解活性を有するペプチドは、PA(Pro-Ala)配列を含むトリペプチドである請求項6に記載の化合物。
- 請求項1〜8の何れか1項に記載の化合物、及び薬学的に許容される担体を含む薬物組成物。
- 前記化合物は、ナノスフェア構造を形成できる請求項9に記載の薬物組成物。
- 血栓溶解薬物、NOフリーラジカル消去の薬物又は抗血栓薬物とされる請求項9に記載の薬物組成物。
- 卒中又は脳梗塞を治療する薬物とされる請求項9に記載の薬物組成物。
- 一般式IIの化合物を提供し、
ただし、R1及びR2は同一又は異なるC1-4アルキル基を示す工程(1)と、
結合用基を少なくとも2つ有するリンカーアームT、及び血栓溶解活性を有するペプチドQを提供し、前記リンカーアームは第1の結合用基と第2の結合用基を有する工程(2)と、
適当な反応条件において、一般式IIの化合物のカルボキシル基と前記リンカーアームTの第1の結合用基を結合し、一般式IM-1化合物を形成する工程(3)と、
適当な反応条件において、前記血栓溶解活性を有するペプチドQの一端が前記リンカーアームTの第2の結合用基と結合するように、前記血栓溶解活性を有するペプチドQと一般式IM-1化合物を結合して、一般式Iの化合物を形成する工程(4)と、
を含む請求項1に記載の一般式Iの化合物の調製方法。 - 前記第1の結合用基はアミノ基であり、且つ前記第2の結合用基はカルボキシル基又はアミノ基である請求項13に記載の調製方法。
- 前記リンカーアームは、L-Lys、L-Asp又はL-Gluである請求項14に記載の調製方法。
- 前記血栓溶解活性を有するペプチドは、PA(Pro-Ala)配列、PAK(Pro-Ala-Lys)配列、AKP(Ala-Lys-Pro)配列又はKAP(Lys-Ala-Pro)配列を含むオリゴペプチド、或いはPAK配列、AKP配列又はKAP配列を構造単位とした反復配列を含むペプチドからなる群から選ばれたものである請求項13に記載の調製方法。
- 前記PA(Pro-Ala)配列を含むオリゴペプチドは、トリペプチドであり、且つ下記一般式Q1又はQ2を有し、
Pro-Ala-AA (Q1)
AA-Ala-Pro (Q2)
ただし、AAは、L-Ala、L-Val、L-Trp、L-Tyr、L-Pro、L-Phe、Gly、L-Ser、L-Ile、L-Thr、L-Lys、L-Leu、L-Gln、L-Asn、L-Asp及びL-Gluからなる群から選ばれたものである請求項16に記載の調製方法。 - R1及びR2の何れもメチル基である請求項13に記載の調製方法。
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