JP5642067B2 - 1−(2−ハロビフェニル−4−イル)−シクロプロパンカルボン酸の誘導体を調製する方法 - Google Patents
1−(2−ハロビフェニル−4−イル)−シクロプロパンカルボン酸の誘導体を調製する方法 Download PDFInfo
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- JP5642067B2 JP5642067B2 JP2011512846A JP2011512846A JP5642067B2 JP 5642067 B2 JP5642067 B2 JP 5642067B2 JP 2011512846 A JP2011512846 A JP 2011512846A JP 2011512846 A JP2011512846 A JP 2011512846A JP 5642067 B2 JP5642067 B2 JP 5642067B2
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- biphenyl
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- 125000004043 oxo group Chemical group O=* 0.000 description 1
- 239000001301 oxygen Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 208000033808 peripheral neuropathy Diseases 0.000 description 1
- 238000003408 phase transfer catalysis Methods 0.000 description 1
- 125000005936 piperidyl group Chemical group 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000013341 scale-up Methods 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
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Chemical group 0.000 description 1
- 239000011593 sulfur Chemical group 0.000 description 1
- 239000000725 suspension Substances 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
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
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- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
- C07C17/14—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the side-chain of aromatic compounds
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/14—Preparation of carboxylic acid nitriles by reaction of cyanides with halogen-containing compounds with replacement of halogen atoms by cyano groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/02—Systems containing only non-condensed rings with a three-membered ring
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Description
アルツハイマー病は、組織病理学的な観点から、アルツハイマー患者の脳実質における細胞外および血管周囲の神経突起プラーク(neuritic plaque)ならびに細胞内神経原線維タングルの広範な存在を特徴とする神経変性障害である。
本発明の主題は、一般式(I)の化合物またはその塩を調製するための方法であって、
Xは、ハロゲン原子、好ましくはフッ素であり、
Rは、
−ハロゲン原子、好ましくは塩素、
−CF3、
−CH=CH2、
−CN、
−CH2OH、
−NO2、
−メチレンジオキシ、
−エチレンジオキシ、
−シクロアルキル、好ましくは、C3〜C6シクロアルキル、
−フェニル、
−OR1またはNHCOR1(式中、R1は、CF3、アルケニル、アルキニル、ベンジルおよびフェニルからなる群から選択される)、
−SR2、SOR2またはCOR2(式中、R2はアルキルである)
から独立して選択される1個または複数の基を表し、
nはRの数であって、環上の置換可能なHの数を越えない整数であり、
スキーム1による下記のステップ:
(i)式(II)の化合物(式中、Xは、上のように定義され、X’は、塩素、臭素、ヨウ素またはトリフレート基(CF3SO3)である)を式(III)の化合物(式中、Rは上のように定義される)と反応させ、式(IV)の化合物を形成させるステップと、
(ii)式(IV)の化合物をラジカル臭素化にかけ、式(V)の化合物を形成させるステップと、
(iii)式(V)の化合物を式(VI)の対応するニトリル誘導体に変換するステップと、
(iv)式(VI)の化合物を1,2−ジブロモエタンと反応させ、式(VII)の化合物を形成させるステップと、
(v)式(VII)の化合物を加水分解し、式(I)の化合物を得るステップとを含む方法である。
本明細書において使用される用語は、下記の意味を有する:
「ハロゲン原子」は、フッ素、塩素、臭素およびヨウ素を包含する。
本発明は、スキーム1に従って一般式(I)の化合物を調製するための方法を提供し
XおよびRは、上で定義されている通りである。
−溶媒:20体積エタノール、
−塩基:2当量Na2CO3、
−触媒:13%w/wC上Pd10%、
−温度:還流。
3’,4’−ジクロロ−2−フルオロ−4−メチル−ビフェニルの調製
3−フルオロ−4−ブロモトルエン(50g、0.265mol)および3,4−ジクロロフェニルボロン酸(53g、0.278mol)をエタノール(970ml)に溶かし、炭酸ナトリウム(56.1g、0.529mol)を加える。炭上パラジウム10%(6.6g)を加え、混合物を窒素雰囲気下で4時間にわたって還流する。反応混合物を冷却し、濾過し、濃縮し、酢酸イソプロピル(250ml)を加え、次いで、溶液を再び濃縮する。残渣を酢酸イソプロピル(250ml)および1M水酸化ナトリウム(250ml)に溶かす。有機相を分離し、水(125ml)で洗浄し、塩化水素3Mで中和し、食塩水(250ml)で洗浄し、濃縮する。
1H NMR(DMSO−d6,300MHz):7.73(m,2H);7.49(m,2H);7.14(m,2H);2.36(s,3H)。
3’,4’−ジクロロ−2−フルオロ−4−ブロモメチル−ビフェニルの調製
3’,4’−ジクロロ−2−フルオロ−4−メチル−ビフェニル(29g、0.114mol)、N−ブロモスクシンイミド(21.2g、0.119mol)、過酸化ベンゾイル(1.4g、0.004mol)をアセトニトリル(190ml)に溶かす。
1H NMR(DMSO−d6,300MHz):7.87〜7.12(m,6H);4.76(s,2H)。
3’,4’−ジクロロ−2−フルオロ−4−シアノメチル−ビフェニルの調製
3’,4’−ジクロロ−2−フルオロ−4−ブロモメチル−ビフェニル(35.0g、0.105mol)およびシアン化ナトリウム(5.4g、0.110mol)をエタノール(228ml)と水(25ml)の混合物に溶かし、次いで、3時間にわたって50℃にて加熱する。溶液を真空下で濃縮し、残渣をエタノール/水1/1v/v(35ml)に懸濁し、30分にわたって0〜5℃にて冷却する。
HPLC−UV純度(250nm):92.3%
1H NMR(DMSO−d6,300MHz):7.78(m,2H);7.60(m,2H);7.34(m,2H);4.14(s,1H)。
1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンニトリルの調製
3’,4’−ジクロロ−2−フルオロ−4−シアノメチル−ビフェニル(9.0g、0.032mol)、1,2−ジブロモメタン(9.0g、0.048mol)、塩化テトラブチルアンモニウム(1.2g、0.043mol)、トルエン(60ml)および水(9ml)を反応器に入れる。
HPLC−UV純度(250nm):98.2%
1H NMR(DMSO−d6,300MHz):7.78(m,2H);7.60(m,2H);7.30(m,2H);1.84(m,2H);1.63(m,2H)。
1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンカルボン酸の調製
1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンニトリル(14.3g、0.047mol)を、メタノール(143ml)と水(71.5ml)の混合物に溶かし、水酸化カリウム(35.1g、0.563mol)を滴加し、混合物を48時間にわたって還流する。
HPLC−UV純度(255nm):99.8%
1H NMR(DMSO−d6,300MHz):12.51(bs,1H);7.78(m,2H);7.54(m,2H);7.30(m,2H);1.48(m,2H);1.22(m,2H)
MS(ESI−,40V):323(M−);279
融解範囲:199〜200℃。
Claims (10)
- 一般式(I)の化合物を調製するための方法であって、
Xはフッ素であり、
Rはハロゲン原子であり、
nはRの数であって、環上の置換可能なHの数を越えない整数であり、
下記のステップ:
(i)式(II)
式(III)
(ii)式(IV)の化合物をラジカル臭素化にかけ、式(V)
(iii)式(V)の化合物を式(VI)
(iv)式(VI)の化合物を1,2−ジブロモエタンと反応させ、式(VII)
(v)式(VII)の化合物を加水分解し、式(I)の化合物を得るステップとを含む方法。 - 式(I)の化合物を単離して結晶化するステップをさらに含む、請求項1に記載の方法。
- 結晶化が、n−ヘプタンとイソプロピルアルコールの混合物を使用することにより行われる、請求項2に記載の方法。
- ステップ(i)が、テトラキス(トリフェニルホスフィン)パラジウム、活性炭上パラジウム、およびアルミナ上パラジウムからなる群から選択されるパラジウム触媒の存在下で行われる、請求項1から3のいずれかに記載の方法。
- パラジウム触媒が活性炭上パラジウムである、請求項4に記載の方法。
- ステップ(ii)が、溶媒としてアセトニトリルを使用し、触媒量の過酸化ベンゾイルの存在下にN−ブロモスクシンイミドで行われる、請求項1から5のいずれかに記載の方法。
- 前記Rが塩素である、請求項1に記載の方法。
- 前記一般式(I)の化合物が1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンカルボン酸である、請求項7に記載の方法。
- 下記のステップ:
(i)4−ブロモ−3−フルオロ−トルエンを3,4−ジクロロフェニルボロン酸と反応させて3’,4’−ジクロロ−2−フルオロ−4−メチル−ビフェニルを形成させるステップと、
(ii)3’,4’−ジクロロ−2−フルオロ−4−メチル−ビフェニルをラジカル臭素化にかけて3’,4’−ジクロロ−2−フルオロ−4−ブロモメチル−ビフェニルを形成させるステップと、
(iii)3’,4’−ジクロロ−2−フルオロ−4−ブロモメチル−ビフェニルを対応する3’、4’−ジクロロ−2−フルオロ−4−シアノメチル−ビフェニルに変換するステップと、
(iv)3’,4’−ジクロロ−2−フルオロ−4−シアノメチル−ビフェニルを1,2−ジブロモエタンと反応させて1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンニトリルを形成させるステップと、
(v)1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンニトリルを加水分解して1−(3’,4’−ジクロロ−2−フルオロ[1,1’−ビフェニル]−4−イル)−シクロプロパンカルボン酸を得るステップとを含む請求項8に記載の方法。 - 医薬組成物を調製するための方法であって、請求項1に記載のステップ(i)〜(v)および1種または複数の薬学的に許容される添加剤の混合を含む追加ステップ(vi)を含む方法。
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AU2010281069B2 (en) * | 2009-08-04 | 2015-09-10 | Chiesi Farmaceutici S.P.A. | Process for the preparation of derivatives of 1-(2-halobiphenyl-4-yl)-cyclopropanecarboxylic acid |
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