JP7799694B2 - 薬学的に活性な化合物としてのカンナビノイド誘導体及びその調製方法 - Google Patents
薬学的に活性な化合物としてのカンナビノイド誘導体及びその調製方法Info
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- JP7799694B2 JP7799694B2 JP2023536532A JP2023536532A JP7799694B2 JP 7799694 B2 JP7799694 B2 JP 7799694B2 JP 2023536532 A JP2023536532 A JP 2023536532A JP 2023536532 A JP2023536532 A JP 2023536532A JP 7799694 B2 JP7799694 B2 JP 7799694B2
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- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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- 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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/415—1,2-Diazoles
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- C07C215/48—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton with amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains not further substituted by hydroxy groups
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/62—Oxygen or sulfur atoms
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
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- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
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- C07D249/04—1,2,3-Triazoles; Hydrogenated 1,2,3-triazoles
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Description
本出願は、2020年12月15日(15.12.2020)に出願されたGB2019786.9;2021年3月26日(26.03.2021)に出願されたGB2104278.3;及び2021年7月21日(21.07.2021)に出願されたGB2110512.7に関連し、それらの利益を主張する。これらの文献のそれぞれの内容は、参照によりその全体が本明細書に組み込まれる。
(1a)式(II)の化合物を式(III)の化合物と反応させる工程
を含み、
R1及びR2はOHであるか;又はR1及びR2が一緒になって-OC(Me)2C(Me)2O-を形成し;
X1は以下で定義される、方法が提供される。
(2a)式(II)の化合物をビス(ピナコラト)ジボロンと反応させる工程;及び
(2b)工程(2a)の生成物を式(IV)の化合物と反応させる工程
を含み、
X2は以下で定義される、方法が提供される。
本発明は、式(I)の化合物を提供し、
いくつかの実施形態において、式(I)の化合物は、遊離塩基形態で提供される。
いくつかの実施形態において、式(I)の化合物は、脱溶媒和形態、例えば脱水形態で提供される。
式(I)の化合物が例えばヘテロアリール基内にsp2窒素原子(-N=)を含む場合、(-N+(O-)=)としても示される対応するN-オキシド(-N(→O)=)を調製する、精製する、及び/又は取り扱うのが便利である場合がある。
式(I)のある特定の化合物は、これらに限定されないが、D体及びL体;d体及びl体;(+)体及び(-)体;syn体及びanti体;アキシアル体及びエカトリアル体;舟形、いす形、ねじれ舟形、封筒形、及び半いす形;並びにそれらの組合せを含む、1つ又は複数の特定の光学体、鏡像異性体、ジアステレオマー体、エピマー体、立体異性体、互変異性体、又は立体配座体で存在することができ、これ以降、「異性体」又は「異性形態」として総称する。
式(I)の化合物の合成のための方法は、実施例に記載されている。合成カンナビノイドの合成に関する追加の情報は、Gongら(2019)に見出すことができる。
本発明は、式(I)の化合物を調製する第1の方法であって、
(1a)式(II)の化合物を式(III)の化合物と反応させる工程
を含み、
R1及びR2はOHであるか;又はR1及びR2が一緒になって-OC(Me)2C(Me)2O-を形成し;
X1は、
本発明はまた、式(I)の化合物を調製する第2の方法であって、
(2a)式(II)の化合物をビス(ピナコラト)ジボロンと反応させる工程;及び
(2b)工程(2a)の生成物を式(IV)の化合物と反応させる工程
を含み、
X2は、
本発明は、式(I)の化合物の調製において有用な中間体を提供する。本発明の中間体は、式(II)の化合物である。
式(I)の化合物を単独で投与することが可能であるが、式(I)の化合物を1つ又は複数の他の薬学的に許容される成分と共に含む医薬組成物(例えば、製剤、調製物、又は医薬)を投与することが好ましい。
本発明者らは、式(I)の化合物が生物学的に活性であることを見出した。実施例は、式(I)の化合物がマウスモデルにおいて抗けいれん活性を示すことを実証している。したがって、式(I)の化合物及びその塩、並びに式(I)の化合物又はその塩を含む医薬組成物は、医学的治療において有用であろう。
本発明者らは、式(I)の化合物が、全般発作のマウスモデルにおいて抗けいれん活性を示すことを見出した。したがって、式(I)の化合物、その塩、及び式(I)の化合物又はその塩を含む医薬組成物は、発作に関連するある特定の状態の治療において有用であろう。
治療方法は、典型的には、対象又は患者に式(I)の化合物又はその塩を投与する工程を含む。
治療方法は、全身的/末梢的であるか又は局所的(すなわち所望の作用部位で)であるかに関わらず、任意の好都合な投与経路によって対象に式(I)の化合物又はその塩を投与する工程を含み得る。
治療方法は、典型的には、対象に治療有効量の式(I)の化合物又はその塩を投与する工程を含む。
上述の実施形態のありとあらゆる適合する組合せは、ありとあらゆる組合せが個々に明示的に列挙されるのと同等に、本明細書において明示的に開示される。
本発明の理解を助けるために、以下の用語が以降で定義される。
CBD誘導体の合成的生成法
この実施例は、薬理活性を示した標準的CBD(1~48)の新規類似体を生成するために使用された合成方法を説明する。以下のスキーム1a及び1bは、中間体(1aa、1ab及び1ba)を調製するための最初の経路を説明しており、スキーム2a~2rは、スキーム1a若しくは1bのいずれか1つから、又は指定された出発材料(スキーム2p、2q、2r)から得られたいくつかの中間体を介して形成されたCBD誘導体1~48のその後の生成を説明している。
最小試料サイズを用いたマウスモデルにおける最大電気ショック発作閾値(MEST)試験(mini MEST)を使用した抗けいれん活性についてのカンナビノイド誘導体の評価
1~5の例示的カンナビノイド誘導体の有効性を、全般発作の新規マウスモデル、mini-MEST(最大電気ショック発作閾値)試験(典型的に使用されるものより低いn数を使用)において試験した。
試験の詳細:
未処理マウスをホームケージ内の処置室に7日間まで馴化させ、食物及び水を自由に摂取させた。
ビヒクル:(85%生理食塩水中の5%エタノール、10% solutol)を以下のように調製した:1mLのエタノール、2mLのsolutolを17mLの生理食塩水中で60℃まで温めた(1:2:17)。
けいれんの発生直後に、The Humane Killing of Animals under Schedule 1 to the Animals (Scientific Procedures) Act 1986に従い、頭蓋を叩くことにより脳を破壊することで各動物を人道的に屠殺し、続いて断頭により血液循環の永久停止を確認した。断頭後に終末部血液及び脳の採取を行った。
各治療群に対するデータを、使用した各電流レベルでの+及び0の数として記録し、次いでこの情報を使用してCC50値(動物の50%が発作挙動を示すのに必要な電流)±標準誤差を計算した。
図1~図3及びTable 2(表2)~Table 4(表4)は、この実験において生成されたデータを説明している。
これらのデータは、化合物の治療効果を実証している。
最小試料サイズを用いたマウスにおける最大電気ショック発作閾値(MEST)試験(mini -MEST)を使用した抗けいれん活性についてのカンナビノイド誘導体の評価
12、42及び43の例示的カンナビノイド誘導体の有効性を、全般発作の新規マウスモデル、mini-MEST(最大電気ショック発作閾値)試験(典型的に使用されるものより低いn数を使用)において試験した。
試験の詳細、試料採取及び統計分析
実施例2によるプロトコルに従った。
ビヒクル:(85%生理食塩水中の5%エタノール、10% solutol)を以下のように調製した:1mLのエタノール、2mLのsolutolを17mLの生理食塩水中で60℃まで温めた(1:2:17)。
図4~図6及びTable 5(表5)~Table 7(表7)は、この実験において生成されたデータを説明している。
これらのデータは、試験された少なくとも1つの濃度における化合物の治療効果を実証している。
マウスにおける最大電気ショック発作閾値(MEST)試験を使用した抗けいれん活性についてのカンナビノイド誘導体の評価
1のカンナビノイド誘導体の有効性を、全般発作のマウスモデル、最大電気ショック発作閾値(MEST)試験において試験した。
試験の詳細、試料採取及び統計分析
対数スケール間隔の代わりに5mAの間隔で電流を低下又は上昇させて、実施例2によるプロトコルに従った。
ビヒクル:(5%エタノール、10% solutol、85%生理食塩水)を以下のように調製した:1mLのエタノール、2mLのsolutolを17mLの生理食塩水中で60℃まで温めた(1:2:17)。
図7及びTable 8(表8)は、この実験において生成されたデータを説明している。
これらのデータは、化合物1の治療効果を実証し、実施例2(Table 2(表2))に示される抗けいれん効果を再確認している。
最小試料サイズを用いたマウスにおける最大電気ショック発作閾値(MEST)試験(mini -MEST)を使用した抗けいれん活性についてのカンナビノイド誘導体の評価
6、13、22、26、28、33、38及び46の例示的カンナビノイド誘導体の有効性を、全般発作の新規マウスモデル、mini-MEST(最大電気ショック発作閾値)試験(典型的に使用されるものより低いn数を使用)において試験した。
試験の詳細、試料採取及び統計分析
実施例2によるプロトコルに従った。
ビヒクル:(85%生理食塩水中の5%エタノール、10% solutol)を以下のように調製した:1mLのエタノール、2mLのsolutolを17mLの生理食塩水中で60℃まで温めた(1:2:17)。
図8~図12及びTable 9(表9)~Table 13(表13)は、この実験において生成されたデータを説明している。
これらのデータは、試験された少なくとも1つの濃度における化合物の治療効果を実証している。
最小試料サイズを用いたマウスにおける最大電気ショック発作閾値(MEST)試験(mini -MEST)を使用した抗けいれん活性についてのカンナビノイド誘導体の評価
36の例示的カンナビノイド誘導体の有効性を、全般発作の新規マウスモデル、mini-MEST(最大電気ショック発作閾値)試験(典型的に使用されるものより低いn数を使用)において試験した。
試験の詳細、試料採取及び統計分析
実施例2によるプロトコルに従った。
ビヒクル:(85%生理食塩水中の5%エタノール、10% solutol)を以下のように調製した:1mLのエタノール、2mLのsolutolを17mLの生理食塩水中で60℃まで温めた(1:2:17)。
図13及びTable 14(表14)は、この実験において生成されたデータを説明している。
このデータは、化合物の治療効果を実証している。
本発明及び本発明が関連する技術の現状についてより完全に記載及び開示するために、いくつかの刊行物が上記で引用されている。これらの参考文献の引用全てが、以下に提示されている。これらの参考文献のそれぞれの内容が、本明細書に組み込まれる。
1. Gong et al., “Synthesis of CBD and Its Derivatives Bearing Various C4’-Side Chains with a Late-Stage Diversification Method”, J. Org. Chem, 2020, Vol. 85, pp. 2704-2715.
Claims (20)
- 式(I)の化合物又はその塩であって、
式中、Xは、
のうちの1つである、化合物又はその塩。 - 遊離塩基形態で提供される、請求項1に記載の化合物。
- 薬学的に許容される塩として提供される、請求項1に記載の化合物。
- 脱水形態で提供される、請求項1に記載の化合物。
- 請求項1から4のいずれか一項に記載の化合物を含む医薬組成物。
- 担体、希釈剤(例えば油)、賦形剤、アジュバント、フィラー、緩衝剤、結合剤、崩壊剤、保存剤、酸化防止剤、滑沢剤、安定剤、可溶化剤、界面活性剤、マスキング剤、着色剤、香味剤、及び甘味剤から選択される1つ又は複数の追加の成分をさらに含む、請求項5に記載の医薬組成物。
- 液剤、溶液剤、懸濁剤、乳剤、シロップ剤、舐剤、口腔洗浄剤、ドロップ剤、錠剤、顆粒剤、散剤、ロゼンジ剤、パステル剤、カプセル剤、カシェ剤、丸剤、アンプル剤、ボーラス剤、坐剤、ペッサリー剤、チンキ剤、ゲル剤、ペースト剤、軟膏剤、クリーム剤、ローション剤、油剤、フォーム剤、スプレー剤及びエアロゾル剤から選択される形態の、請求項6に記載の医薬組成物。
- 医薬組成物の形態が、錠剤、カプセル剤、顆粒剤、吸引用の粉末、スプリンクル、経口液剤及び懸濁剤から選択される、請求項6に記載の医薬組成物。
- てんかんの治療における使用のための、請求項5に記載の医薬組成物。
- 全般発作の治療における使用のための、請求項5に記載の医薬組成物。
- 強直間代発作の治療における使用のための、請求項5に記載の医薬組成物。
- 使用がヒト対象においてである、請求項9に記載の医薬組成物。
- 医薬の製造における、請求項1に記載の化合物又はその塩の使用。
- 医薬が、てんかんを治療するため、全般発作を治療するため、又は強直間代発作を治療するために使用される、請求項13に記載の使用。
- 請求項1から4のいずれか一項に規定される式(I)の化合物を調製する方法であって、
(1a)式(II)の化合物を式(III)の化合物と反応させる工程
を含み、
前記式(III)の化合物が、
であり;
X1は、
から選択される、方法。 - 工程(1a)が、式(II)の化合物を式(III)の化合物及びパラジウム触媒と反応させることを含む、請求項15に記載の方法。
- 請求項1から4のいずれか一項に規定される式(I)の化合物を調製する方法であって、
(2a)式(II)の化合物をビス(ピナコラト)ジボロンと反応させる工程;及び
(2b)工程(2a)の生成物を式(IV)の化合物と反応させる工程
を含み、
式中、
X2は、
から選択される、方法。 - 工程(2a)が、式(II)の化合物をビス(ピナコラト)ジボロン及びパラジウム触媒と反応させることを含む、請求項17に記載の方法。
- 工程(2b)が、工程(2a)の生成物を式(IV)の化合物及びパラジウム触媒と反応させることを含む、請求項17に記載の方法。
- 請求項1から4のいずれか一項に規定される式(I)の化合物の調製における使用のための中間体であって、式(II):
の化合物である中間体。
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| AU2021404159A9 (en) | 2024-09-26 |
| US20240025858A1 (en) | 2024-01-25 |
| CA3202111A1 (en) | 2022-06-23 |
| MX2023007026A (es) | 2023-06-28 |
| IL303602A (en) | 2023-08-01 |
| PY21109835A (es) | 2023-02-23 |
| JP2023554421A (ja) | 2023-12-27 |
| TW202237554A (zh) | 2022-10-01 |
| KR20230122083A (ko) | 2023-08-22 |
| AU2021404159A1 (en) | 2023-07-13 |
| EP4262980A1 (en) | 2023-10-25 |
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