JP4510444B2 - ペプチドベースの化合物 - Google Patents
ペプチドベースの化合物 Download PDFInfo
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- JP4510444B2 JP4510444B2 JP2003512261A JP2003512261A JP4510444B2 JP 4510444 B2 JP4510444 B2 JP 4510444B2 JP 2003512261 A JP2003512261 A JP 2003512261A JP 2003512261 A JP2003512261 A JP 2003512261A JP 4510444 B2 JP4510444 B2 JP 4510444B2
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- compound according
- cys
- tfa
- acid
- residue
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- 150000001875 compounds Chemical class 0.000 title claims description 51
- 108090000765 processed proteins & peptides Proteins 0.000 title description 43
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims description 19
- 238000003384 imaging method Methods 0.000 claims description 19
- 239000002738 chelating agent Substances 0.000 claims description 18
- 239000002872 contrast media Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 125000000539 amino acid group Chemical group 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000002246 antineoplastic agent Substances 0.000 claims description 7
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims description 6
- 241001465754 Metazoa Species 0.000 claims description 6
- 235000003704 aspartic acid Nutrition 0.000 claims description 6
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004475 Arginine Substances 0.000 claims description 5
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- AOJJSUZBOXZQNB-TZSSRYMLSA-N Doxorubicin Chemical compound O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-TZSSRYMLSA-N 0.000 claims description 4
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 4
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 4
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004472 Lysine Substances 0.000 claims description 4
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- IYKLZBIWFXPUCS-VIFPVBQESA-N (2s)-2-(naphthalen-1-ylamino)propanoic acid Chemical group C1=CC=C2C(N[C@@H](C)C(O)=O)=CC=CC2=C1 IYKLZBIWFXPUCS-VIFPVBQESA-N 0.000 claims description 3
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- ZDZOTLJHXYCWBA-VCVYQWHSSA-N N-debenzoyl-N-(tert-butoxycarbonyl)-10-deacetyltaxol Chemical compound O([C@H]1[C@H]2[C@@](C([C@H](O)C3=C(C)[C@@H](OC(=O)[C@H](O)[C@@H](NC(=O)OC(C)(C)C)C=4C=CC=CC=4)C[C@]1(O)C3(C)C)=O)(C)[C@@H](O)C[C@H]1OC[C@]12OC(=O)C)C(=O)C1=CC=CC=C1 ZDZOTLJHXYCWBA-VCVYQWHSSA-N 0.000 claims description 2
- 229930012538 Paclitaxel Natural products 0.000 claims description 2
- JXLYSJRDGCGARV-WWYNWVTFSA-N Vinblastine Natural products O=C(O[C@H]1[C@](O)(C(=O)OC)[C@@H]2N(C)c3c(cc(c(OC)c3)[C@]3(C(=O)OC)c4[nH]c5c(c4CCN4C[C@](O)(CC)C[C@H](C3)C4)cccc5)[C@@]32[C@H]2[C@@]1(CC)C=CCN2CC3)C JXLYSJRDGCGARV-WWYNWVTFSA-N 0.000 claims description 2
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims description 2
- 150000003973 alkyl amines Chemical class 0.000 claims description 2
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
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- 150000001412 amines Chemical class 0.000 claims description 2
- XCPGHVQEEXUHNC-UHFFFAOYSA-N amsacrine Chemical compound COC1=CC(NS(C)(=O)=O)=CC=C1NC1=C(C=CC=C2)C2=NC2=CC=CC=C12 XCPGHVQEEXUHNC-UHFFFAOYSA-N 0.000 claims description 2
- 229960001220 amsacrine Drugs 0.000 claims description 2
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- DQLATGHUWYMOKM-UHFFFAOYSA-L cisplatin Chemical compound N[Pt](N)(Cl)Cl DQLATGHUWYMOKM-UHFFFAOYSA-L 0.000 claims description 2
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- 229960000684 cytarabine Drugs 0.000 claims description 2
- STQGQHZAVUOBTE-VGBVRHCVSA-N daunorubicin Chemical compound O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(C)=O)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 STQGQHZAVUOBTE-VGBVRHCVSA-N 0.000 claims description 2
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Description
Gはグリシンを表し、かつ、
Dはアスパラギン酸を表し、かつ、
R1は-(CH2)n-または-(CH2)n-C6H4-を表し、好ましくはR1は-(CH2)-を表し、かつ、
nは正の整数1〜10を表し、
hは正の整数1または2を表し、かつ、
X1は酸またはアミンなどの官能性側鎖を有するアミノ酸残基、優先的にはアスパラギン酸またはグルタミン酸、リジン、ホモリジン、ジアミノアリサイクリック酸(diaminoalcylic acid)またはジアミノプロピオン酸を表し、
X2およびX4は独立に、ジスルフィド結合を形成し得るアミノ酸残基、好ましくはシステインまたはホモシステイン残基を表し、かつ、
X3はアルギニン、N-メチルアルギニンまたはアルギニンミメティック、好ましくはアルギニンを表し、かつ、
X5は疎水性アミノ酸またはその誘導体、好ましくはチロシン、フェニルアラニン、3-ヨードチロシンまたはナフチルアラニン残基、より好ましくはフェニルアラニンまたは3-ヨードチロシン残基を表し、かつ、
X6はチオール含有アミノ酸残基、好ましくはシステインまたはホモシステイン残基を表し、かつ、
X7は存在しないか、または好ましくは1〜10単位の構成ブロックを含んでなる単分散PEG構成ブロックベースの相同のバイオモディファー部分を表し、該バイオモディファーは該薬剤の薬物動態および血液クリアランス速度を改変する機能を有する。さらにX7はまた1から10のアミノ酸残基、好ましくはグリシン、リジン、アスパラギン酸またはセリンを表してよい。本発明の好ましい実施形態ではX7は単分散PEG様構造の重合からなるバイオモディファー単位、式II:
nは正の整数1〜10を表し、
C末端単位はアミド部分である}
の17-アミノ-5-オキソ-6-アザ-3,9,12,15-テトラオキサヘプタデカン酸を表す。
R1、R2、R3およびR4は各々独立にR基であり;
R基は各々独立にHまたはC1-10アルキル、C3-10アルキルアリール、C2-10アルコキシアルキル、C1-10ヒドロキシアルキル、C1-10アルキルアミン、C1-10フルオロアルキルであるか、又は2以上のR基が、それらが結合している原子とともに炭素環、複素環、飽和若しくは不飽和環を形成する}のキレート剤により表されるか、あるいは式a、b、cおよびd
実際の質量=1406.662
分子式=C60H98N18O15S3
1a)cPn216キレートの合成
テクネチウムキレートcPn216の合成の詳細については特許出願GB0116815.2を参照。
実際の質量=1117.464
分子式=C46H76CIN13O11S3
このペプチドはABI 433A自動ペプチド合成装置にて、1mmolのアミノ酸カートリッジを用い、0.25mmolスケールでRink Amide AM樹脂で開始して合成した。これらのアミノ酸は結合前にHBTUを用いて予め活性化した。N-末端アミン基はDMF中の無水クロロ酢酸溶液を用いて30分間クロロアセチル化した。
実際の質量=1081.487
分子式=C46H75N13O11S3
295mgのClCH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-NH2を水/アセトニトリルに溶かした。混合物をアンモニア水でpH8に調整し、16時間攪拌した。
実際の質量=967.346
分子式=C38H57N13O11S3
217mgのチオエーテルシクロ[CH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys]-NH2をアニソール(500μl)、DMSO(2mL)およびTFA(100mLl)の溶液で60分間処理し、その後真空下でTFAを除去し、ジエチルエーテルを添加することによりペプチドを沈殿させた。
実際の質量=1406.662
分子式=C60H98N18O15S3
1.7mgのジスルフィド[Cys2-6]チオエーテルシクロ[CH2CO-Lys-Cys-Arg-Gly-Asp-Cys-Phe-Cys]-NH2、9.1mgのcPn216キレート活性エステルおよび6μLのN-メチルモルホリンをDMF(0.5μL)に溶かした。混合物を3時間攪拌した。
ジスルフィド[Cys 2-6 ]チオエーテルシクロ[CH 2 CO-Lys(cPn216-グルタリル)-Cys 2 -Arg-Gly-Asp-Cys 6 -Phe-Cys]-(PEG)n-NH 2( ただし、n=1)
2a)17-(Fmoc-アミノ)-5-オキソ-6-アザ-3,9,12,15-テトラオキサヘプタデカン酸
乾燥THF(100ml)中、乾燥テトラエチレングリコール(19.4 g, 0.100mol)および塩化メタンスルホニル(25.2g, 0.220mol)の溶液をアルゴン下で維持し、氷水浴中で0℃まで冷却した。このフラスコに乾燥THF(25ml)中、トリエチルアミン(22.6g, 0.220mol)溶液を45分間にわたって滴下した。1時間後、冷却浴をはずし、攪拌を4時間続けた。水(60ml)を加えた。この混合物に炭酸水素ナトリウム(6g, pH8まで)およびアジ化ナトリウム(14.3g, 0.220mmol)をこの順序で加えた。THFを留去し、この水溶液を24時間還流させた(二相となった)。この混合物を冷却し、エーテル(100ml)を加えた。水相を塩化ナトリウムで飽和させた。相を分け、水相をエーテル(4x50ml)で抽出した。合した有機相をブライン(2x50ml)で洗浄し、乾燥させた(MgSO4)。濾過および濃縮すると22.1g(91%)の黄色オイルが得られた。この生成物をさらに精製することなく次の工程で用いた。
5%塩酸(200ml)中、激しく機械攪拌した1,11-ジアジド-3,6,9-トリオキサウンデカン(20.8g, 0.085mol)の懸濁液に、エーテル(150ml)中のトリフェニルホスフィン(19.9g, 0.073mol)溶液を室温で3時間にわたって加えた。この反応混合物をさらに24時間攪拌した。相を分け、水相をジクロロメタン(3x40ml)で抽出した。この水相を氷水浴中で冷却し、KOHを添加することによりpHを約12に調整した。生成物をジクロロメタン(5x50ml)で抽出した。合した有機相を乾燥させた(MgSO4)。濾過および濃縮すると14.0g(88%)の黄色オイルが得られた。MALDI-TOF質量分析法(マトリックス:α-シアノ-4-ヒドロキシ桂皮酸)により分析したところ予測されたように219にM+Hピークが得られた。1H(500MHz)および13C(125MHz)NMR分光光度測定を用いてさらに特性決定したところこの構造が確認された。
ジクロロメタン(100ml)中、11-アジド-3,6,9-トリオキサウンデカンアミン(10.9g, 50.0mmol)の溶液に無水二グリコール酸(6.38g, 55.0mmol)を加えた。反応混合物を一晩攪拌した。HPLC分析(カラムVydac 218TP54;溶媒:A=水/0.1%TFAおよびB=アセトニトリル/0.1%TFA;グラジェントは20分間にわたって4〜16%のB;流速1.0ml/分;214および284nmにてUV検出)を行ったところ、出発材料が保持時間18.3分の生成物に完全に変換していたことが分かった。この溶液を濃縮すると定量的収量の黄色シロップが得られた。この生成物をLC-MS(ESイオン化)により分析したところ、予測されたように[MH]+は335にあった。1H(500MHz)および13C(125MHz)NMR分光光度測定も構造に一致した。この生成物をさらに精製することなく次の工程で用いた。
水(100ml)中、17-アジド-5-オキソ-6-アザ-3,9,12,15-テトラオキサヘプタデカン酸(8.36g, 25.0mmol)の溶液をH2(g)-Pd/C(10%)を用いて還元した。LC-MS分析(カラム Vydac 218TP54;溶媒:A=水/0.1%TFAおよびB=アセトニトリル/0.1%TFA;グラジェント20分にわたって4〜16%のB;流速1.0ml/分;214および284nmにてUV検出、ESイオン化では取発材料については335に、生成物については309にM+Hが得られる)により出発材料が完全に変換したことが示されるまで反応を進めた。この溶液を濾過し、そのまま次の工程に用いた。
上記で得られた17-アミノ-5-オキソ-6-アザ-3,9,12,15-テトラオキサヘプタデカン酸の水溶液(アミノ酸25.0mmolに相当)に重炭酸ナトリウム(5.04g, 60.0mmol)およびジオキサン(40ml)を加えた。ジオキサン(40ml)中のFmoc-クロリド(7.11g, 0.275mol)の溶液を滴下した。この反応混合物を一晩攪拌した。ジオキサンを蒸発除去し(rotavapor)、水相を酢酸エチルで抽出した。この水相を塩酸を添加することにより酸性化し、沈殿した物質をクロロホルムで抽出した。有機相を乾燥させ(MgSO4)、濾過および濃縮したところ11.3g(85%)の黄色シロップが得られた。構造はLC-MS分析(カラムVydac 218TP54;溶媒:A=水/0.1%TFAおよびB=アセトニトリル/0.1%TFA;グラジェントは20分にわたって40〜60%のB;流速1.0ml/分;214および254nmにてUV検出W、ESイオン化では、5,8分の生成物ピークに関して予測されたように531にM+Hが得られる)により確認した。この分析により副生成物の含量は極めて低いことが分かり、この材料をさらに精製することなく用いた。
実際の質量=1407.612
分子式=C58H98CIN15O17S3
PEGユニットを、HATU活性化を媒介に0.25mmolスケールで開始し、Rink Amide AM樹脂に手作業で結合させた。残りのペプチドは1mmolアミノ酸カートリッジを用いABI 433A自動ペプチド合成装置にて構築した。これらのアミノ酸は結合前にHBTUを用いて予め活性化した。N-末端アミン基はDMF中の無水クロロ酢酸溶液を用いて30分間クロロアセチル化した。
実際の質量=1371.635
分子式=C58H97N15O17S3
322mgのClCH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-(PEG)n-NH2を水/アセトニトリルに溶かした。混合物をアンモニア水でpH8に調整し、16時間攪拌した。
実際の質量=1257.494
分子式=C50H79N15O17S3
チオエーテルシクロ[CH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys]-(PEG)n-NH2をアニソール(200μL)、DMSO(2mL)およびTFA(100mL)の溶液で60分間処理し、その後TFAを真空下で除去し、ジエチルエーテルを添加することによりペプチドを沈殿させた。
実際の質量=1696.810
分子式=C72H120N20O21S3
13mgの[Cys2-6]シクロ[CH2CO-Lys-Cys-Arg-Gly-Asp-Cys-Phe-Cys]-(PEG)n-NH2、9.6mgのcPn216キレートエステルおよび8μLのN-メチルモルホリンをDMF(0.5mL)に溶かした。この混合物を2時間半攪拌した。
ジスルフィド[Cys 2-6 ]チオエーテルシクロ[CH 2 CO-Lys(cPn216-グルタリル)-Cys 2 -Arg-Gly-Asp-Cys 6 -Phe-Cys]-(PEG)n-NH 2 (ただし、n=2)の合成
3a)ClCH 2 CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-(PEG)n-NH 2 (ただし、n=2)の合成
実際の質量=1697.759
分子式=C70H120CIN17O23S3
ペプチドの構築は実施例2b)と同様に、両PEGユニットを手作業により結合させた。
実際の質量=1661.783
分子式=C70H119N17O23S3
ClCH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-(PEG)n-NH2(ただし、n=2)を水/アセトニトリルに溶かし、アンモニア水でpH8に調整し、16時間攪拌した。
実際の質量=1547.642
分子式=C62H101N17O23S3
380mgのチオエーテルシクロ[CH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys]-(PEG)n-NH2(ただし、n=2)をアニソール(500μl)、DMSO(2mL)およびTFA(100mLの溶液で60分間処理し、その後真空下でTFAを除去し、ジエチルエーテルを添加することによりペプチドを沈殿させた。
実際の質量=1986.958
分子式=C84H142N22O27S3
146mgの[Cys2-6]シクロ[CH2CO-Lys-Cys-Arg-Gly-Asp-Cys-Phe-Cys]-(PEG)2-NH2、110mgのcPn216キレート活性エーテルおよび76μLのN-メチルモルホリンをDMF(6mL)に溶かした。この混合物を9時間攪拌した。
ジスルフィド[Cys 2-6 ]チオエーテルシクロ[CH 2 CO-Lys(cPn216-グルタリル)-Cys 2 -Arg-Gly-Asp-Cys 6 -Phe-Cys]-(PEG)n-NH 2 (ただし、n=4)の合成
4a)ClCH 2 CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-(PEG)n-NH 2 (ただし、n=4)の合成
実際の質量=2278.055
分子式=C94H164CIN21O35S3
ペプチドの構築は実施例2b)と同様に、4種全てのPEGユニットを手作業で結合させた。
実際の質量=2242.078
分子式=C94H163N21O35S3
ClCH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys-(PEG)4-NH2を水/アセトニトリルに溶かした。この混合物をアンモニア水でpH8に調整し、16時間攪拌した。
実際の質量=2127.937
分子式=C86H145N21O35S3
チオエーテルシクロ[CH2CO-Lys-Cys(tBu)-Arg-Gly-Asp-Cys(tBu)-Phe-Cys]-(PEG)4-NH2をアニソール(100μL)、DMSO(1mL)およびTFA(50mL)で60分間処理し、その後真空下でTFAを除去し、ジエチルエーテルを添加することによりペプチドを沈殿させた。
実際の質量=2567.253
分子式=C108H186N26O39S3。
Claims (19)
- 次の一般式(I)の化合物又はその医薬上許容される塩。
Gはグリシンを表し、
Dはアスパラギン酸を表し、
R1は−(CH2)n−又は−(CH2)n−C6H4−を表し、
nは正の整数1〜10を表し、
hは正の整数1又は2を表し、
X1は、酸又はアミンを含有する官能性側鎖を有するアミノ酸残基を表し、
X2及びX4は独立にジスルフィド結合を形成し得るアミノ酸残基を表し、
X3はアルギニン、N−メチルアルギニン又はアルギニンミメティックを表し、
X5はチロシン、フェニルアラニン、3−ヨードチロシン又はナフチルアラニン残基を表し、
X6はチオール含有アミノ酸残基を表し、
X7は存在しないか、又は1〜10単位の単分散PEG構成ブロックもしくは1〜10のアミノ酸残基を含むバイオモディファー部分を表し、
Z1は抗腫瘍剤、キレート剤又はレポーター部分を表し、
W1は存在しないか、又はスペーサー部分を表す。 - アミノ酸残基のいずれかが独立にD又はL配置である、請求項1に記載の化合物。
- R1が−(CH2)−を表す、請求項1に記載の化合物。
- X1がアスパラギン酸、グルタミン酸、リジン、ホモリジンもしくはジアミノアルキル酸、又はその誘導体を表す、請求項1乃至請求項3のいずれか1項に記載の化合物。
- X2、X4及びX6が独立にシステイン又はホモシステイン残基を表す、請求項1乃至請求項4のいずれか1項に記載の化合物。
- X3がアルギニン残基を表す、請求項1乃至請求項5のいずれか1項に記載の化合物。
- X7がグリシン、リジン、アスパラギン酸又はセリン残基を表す、請求項1乃至請求項6のいずれか1項に記載の化合物。
- Z1がレポーター部分を含んでなる、請求項1乃至請求項10のいずれか1項に記載の化合物。
- レポーター部分が金属放射性核種,常磁性金属イオン、蛍光金属イオン、重金属イオン又はクラスターイオンを含んでなる、請求項11に記載の化合物。
- レポーター部分が90Y、99mTc、111In、47Sc、67Ga、51Cr、177mSn、67Cu、167Tm、97Ru、188Re、177Lu、199Au、203Pb、141Ce又は18Fを含んでなる、請求項11又は請求項12に記載の化合物。
- レポーター部分が99mTcである、請求項1乃至請求項13のいずれか1項に記載の化合物。
- Z1が抗腫瘍剤である、請求項1乃至請求項8のいずれか1項に記載の化合物。
- Z1がシクロホスファミド、クロロアムブシル、ブスルファン、メトトレキサート、シタラビン、フルオロウラシル、ビンブラスチン、パクリタキセル、ドキソルビシン、ダウノルビシン、エトポシド、テニポシド、シスプラチン、アムサクリン又はドセタキセルを表す、請求項15に記載の化合物。
- W1がグルタル酸又はコハク酸である、請求項1乃至請求項16のいずれか1項に記載の化合物。
- 人体又は動物体へ該造影剤を投与し、その身体の少なくとも一部を画像化することを含む診断法で使用するための造影剤の製造における、請求項1乃至請求項18のいずれか1項に記載の化合物の使用。
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GBGB0116815.2A GB0116815D0 (en) | 2001-07-10 | 2001-07-10 | Improved chelator conjugates |
NO20014954A NO20014954D0 (no) | 2001-10-11 | 2001-10-11 | Peptidbaserte forbindelser |
PCT/NO2002/000250 WO2003006491A2 (en) | 2001-07-10 | 2002-07-08 | Peptide-based compounds for targeting intergin receptors |
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