JP6170908B2 - 新規アプリシアトキシン誘導体及びそれを含有する抗がん剤 - Google Patents
新規アプリシアトキシン誘導体及びそれを含有する抗がん剤 Download PDFInfo
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- JP6170908B2 JP6170908B2 JP2014511223A JP2014511223A JP6170908B2 JP 6170908 B2 JP6170908 B2 JP 6170908B2 JP 2014511223 A JP2014511223 A JP 2014511223A JP 2014511223 A JP2014511223 A JP 2014511223A JP 6170908 B2 JP6170908 B2 JP 6170908B2
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- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 238000007248 oxidative elimination reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000009521 phase II clinical trial Methods 0.000 description 1
- QGVLYPPODPLXMB-QXYKVGAMSA-N phorbol Natural products C[C@@H]1[C@@H](O)[C@]2(O)[C@H]([C@H]3C=C(CO)C[C@@]4(O)[C@H](C=C(C)C4=O)[C@@]13O)C2(C)C QGVLYPPODPLXMB-QXYKVGAMSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000006187 pill Substances 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
- 239000000843 powder Substances 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004007 reversed phase HPLC Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000009870 specific binding Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 201000011549 stomach cancer Diseases 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 150000003892 tartrate salts Chemical class 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
- 229940124597 therapeutic agent Drugs 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical class [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- ONDSBJMLAHVLMI-UHFFFAOYSA-N trimethylsilyldiazomethane Chemical compound C[Si](C)(C)[CH-][N+]#N ONDSBJMLAHVLMI-UHFFFAOYSA-N 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/12—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains three hetero rings
- C07D493/20—Spiro-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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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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- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- General Chemical & Material Sciences (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Neurosurgery (AREA)
- Neurology (AREA)
- Virology (AREA)
- AIDS & HIV (AREA)
- Oncology (AREA)
- Communicable Diseases (AREA)
- Hospice & Palliative Care (AREA)
- Molecular Biology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Psychiatry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Description
構造式(II)で示された10−Me−Aplog−1の全合成について、下記のスキームを参照して説明する。まず、既知のアルデヒド1に対し、Brownの不斉クロチル化反応を行いホモアリルアルコール2へと誘導した。1HNMRより、ジアステレオ選択性は90%以上であることを確認した。また、ホモアリルアルコール2の2級水酸基の絶対的立体はモッシャー法により確認し、エナンチオ選択性も90%以上であることを確認した。続いて、ホモアリルアルコール2の2級水酸基をBoc化し、Smithらの方法によりヨードカーボネートへと誘導した後、アルカリメタノール分解を行いエポキシド3とした。このエポキシド3について、NaOMe処理によりカーボネートを除去した後、2級水酸基をMPMで保護し、エポキシド4を得た。以上の工程を、次式スキーム1−1として示す。
構造式(III)で示されたDe−OMe−DATの合成について、下記のスキーム2を参照して説明する。De−OMe−DATは、全合成には複雑で多数の工程が必要であるため、天然物であるDATから1ステップで合成した。すなわち、DATを酢酸エチルに溶解し、撹拌しつつ水酸化パラジウム−炭素と水素雰囲気下で接触させ、減圧下で濾過し、HPLC(column: AM-323(YMC); solvent: 80% MeCN/H20; flow rate 3.0
mL/min; UV detector: 254nm; retention time: 17.1 min)にて分取することで、DATから15位のメトキシ基を除去したDe−OMe−DATを単離精製した。
10−Me−Aplog−1及びDe−OMe−DATについて、Bryo−1、DAT、Aplog−1及び4−Me−Aplog−1と比較して、矢守によって確立された39種類のヒトがん細胞パネルを用いた増殖抑制活性試験(Yamori,T. et al., Cancer.Res., 1999, 59, p.4042−4049)を行った。下記表3は、そのうち5種類のがん細胞(乳がん細胞2種類、結腸がん細胞1種類、肺がん細胞2種類)に対する結果について抜粋して示したものである。表中、GI50値は、コントロールと比べて細胞増殖を50%阻害する薬剤の濃度を示している。
10−Me−Aplog−1について、TPA、Bryo−1、DAT、Aplog−1及び4−Me−Aplog−1と比較して、発がんプロモーション活性及び抗発がんプロモーション活性を、in vitro評価系の1つであるEpstein−Barr virus早期抗原(EBV−EA)誘導試験を行い評価した(TPAについては発がんプロモーション活性試験のみにおいて比較のために用いた)。下記表4は、発がんプロモーション活性試験の結果を示し、下記表5は抗発がんプロモーション活性試験の結果を示している。
以上のような生理活性発現機構に関する知見を得るため、10−Me−Aplog−1及びDe−OMe−DATについて、DAT、Bryo−1、Aplog−1、4−Me−Aplog−1を比較対象として、PKC C1ドメインに対する結合能をPKC C1ペプチドに対する[3H]phorbol 12,13−dibutyrate(PDBu)結合阻害試験により、結合阻害定数Ki値を求めることで評価した。PKC C1ペプチドは、PKCアイソザイムのC1ドメインを化学合成し、亜鉛を用いてフォールディングさせたものである。これらのペプチドは全長のPKCと同様の強さで発がんプロモーターと結合することが既に確認されている。Ki値の算出には、実験により求めた[3H]PDBuの特異的結合を50%阻害する濃度(IC50)、並びに進藤らにより報告されている各PKC C1ペプチドに対する[3H]PDBuの解離定数(Kd)を用いた(Shindo,M. et al., Bioorg.Med.Chem., 2001, 9, p.2073−2081)。試験結果を下記表6に示す。
構造式(I)のATX誘導体、ATX、DAT、Aplog−1に共通のフェノール環部分の修飾による生理活性の変化を調べるため、Aplog−1のフェノール環部分について、下式のように17位、19位及び21位に様々な置換基を導入した。また、18位のフェノール性水酸基のメチル化は、下式のようにTMSジアゾメタンを用いて行った。
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