JP6674967B2 - 化合物 (s)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの結晶形 - Google Patents
化合物 (s)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの結晶形 Download PDFInfo
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- JP6674967B2 JP6674967B2 JP2017560155A JP2017560155A JP6674967B2 JP 6674967 B2 JP6674967 B2 JP 6674967B2 JP 2017560155 A JP2017560155 A JP 2017560155A JP 2017560155 A JP2017560155 A JP 2017560155A JP 6674967 B2 JP6674967 B2 JP 6674967B2
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- cyclopentyl
- methoxy
- methyl
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Description
1) 本発明の第1の態様は、粉末X線回折ダイアグラムにおける以下の屈折角2θ:5.4°、8.5°及び10.8°におけるピークの存在により特徴づけられる、化合物、(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの結晶形、例えば本質的に純粋な結晶形に関する。
i) 20mgの非晶質形態の(S)−3−{4−[5−(2−シクロペンチル−6−メ
トキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールを0.1mLの酢酸エチル中に溶解し;
ii) 0.9mLのn−ヘプタンを1hに渡ってゆっくりと添加し;そして
iii) 20−25℃にて一晩封止して放置するか;又は、
iv) 25−30mgの非晶質形態の(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールを、5mLの酢酸エチル/n−ヘプタン 1/9(体積/体積)と混合し、70℃に加熱し;そして、
v) 溶液を20−25℃に冷却し、それを4℃にて一晩貯蔵する;
ことにより得ることができる、化合物、(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの結晶形、例えば本質的に純粋な結晶形に関する。
1、2+1、3+1、4+1、4+2+1、4+3+1、5+1、5+2+1、5+3+1、5+4+1、5+4+2+1、5+4+3+1、6、7+6、8+6、9+6、10+6、11+6、11+7+6、11+8+6、11+9+6及び11+10+6。同様に、態様12)は、個々の形態としてここに具体的に開示される下記の態様に関する:6により得ることができる1、6により得ることができる2+1、6により得ることができる3+1、6により得ることができる4+1、6により得ることができる4+2+1、6により得ることができる4+3+1、6により得ることができる5+1、6により得ることができる5+2+1、6により得ることができる5+3+1、6により得ることができる5+4+1、6により得ることができる5+4+2+1及び6により得ることができる5+4+3+1。
24(特に実施例2を見よ。)に記載の通りに、又は公開PCT出願WO2013/175397に開示される製造方法を用いることにより製造することができる。特に、前記化合物は、下記の通りに製造することもできる。
以下の実施例は本発明をより詳細に説明する。温度は摂氏度で記載する。他の記載が無い場合には、室温は18−25℃の範囲にあり、そして百分率は重量によって記載する。
a/a 面積/面積
API 活性薬効成分
ca. 約
DCM ジクロロメタン
DIPEA Huening塩基、ジエチルイソプロピルエチルアミン
DMF ジメチルホルムアミド
DMSO ジメチルスルフォキシド
DSC 示差走査熱量測定
eq 当量
EtOAc 酢酸エチル
EtOH エタノール
Fig. 図
h 時間
1H−NMR 水素−1 核磁気共鳴
HPLC 高速液体クロマトグラフィー
HPMC ヒドロキシプロピルメチルセルロース
LC−MS 液体クロマトグラフィー−質量分析
MeOH メタノール
min 分
m.p. 融点
RH 相対湿度
rt 室温
TBTU 2−(1H−ベンゾトリアゾール−1−イル)−1,2,3,3−テトラメチルウロニウムテトラフルオロボレート
TEA トリエチルアミン
TFA トリフルオロ酢酸
THF テトラヒドロフラン
TLC 薄層クロマトグラフィー
tR 保持時間
XRPD 粉末X線回折
使用した方法
1H−NMR、400MHz、Brucker、化学シフトは、使用する溶媒に対するppmで示す。
粉末X線回折パターンは、反射モード(結合2シータ/シータ)におけるCu Kα−照射で作動するLynxeye検出器を備えたBruker D8 AdvanceX線回折計上で収集した。典型的には、X−線チューブを40kV/40mAで走査させた。3〜50°、2θの走査範囲に渡って、0.02°(2θ)のステップサイズ及び76.8秒のステップタイムを適用した。発散スリットは固定的に0.3に設定した。粉末を、0.5mmの深さのシリコン単結晶サンプルホルダー内にわずかにプレスし、そして分析の
間、サンプルをそれ自体のプレイン中で回転させた。回折データは、装置評価ソフトウェア(EVA)を用いてKa2成分を除去した後、Cu Kα1(λ=1.5406Å)を用いてレポートされる。これまでに測定された粉末X線回折パターンが一般的にそうであるように、本明細書で提供される2θ値の精度は、+/−0.1〜0.2°の範囲内である。
DSCデータは、34サンプルのオートサンプラーを備えたMettler Toledo STARe System(DSC822eモジュール、セラミックセンサー付きの測定用セル及びSTAR ソフトウェア version 9.20)上で収集した。装置は、インジウム標品を用いてエネルギー及び温度について平衡化した。典型的には、1−5mgの各サンプルを、自動的に削孔されるアルミニウムパン内で、特に断らない限り、−20℃から280℃に、10℃ min−1で加熱した。サンプル上で窒素パージを20mL min−1で維持した。ピーク温度は融点に対してレポートする。
(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの製造
a) (R)−N−((2−シクロペンチル−6−メトキシイソニコチノイル)オキシ)−4−((2,2−ジメチル−1,3−ジオキソラン−4−イル)メトキシ)−3−エチル−5−メチルベンゾイミドアミド
30Lの反応器に、2−シクロペンチル−6−メトキシ−イソニコチン酸(1.27kg、1eq.;例えば、WO2013/175397に記載の通りに製造することができる)、DMF(17mL)及びDCM(18L)を添加する。懸濁液に、塩化オキサリル(534mL、1.1eq.)を、20℃にて、30minに渡って添加する。混合物を30min撹拌する。LC−MS分析により反応の完結を確認する。(R)−4−(2,2−ジメチル−[1,3]ジオキソラン−4−イルメトキシ)−3−エチル−N−ヒドロキシ−5−メチル−ベンゾアミジン(1.77kg、1eq.;WO2011/007324に記載の通りに製造することができる)及びTEA(1.78L、2.2eq.)をDCM(4L)中に溶解したものを、酸クロリドに、30℃未満にて、20minの間に渡って添加する。15min撹拌した後、LC−MS分析により反応の完結を確認する。反応混合物を水(7L)で洗浄する。溶媒(18L)を、55℃にて、減圧下で除去する。EtOH(26L)を添加し、懸濁液を0℃に冷却し、ろ過する。フィルターケークをEtOH(7L)で洗浄する。固体をロータリーエバポレーター上で50℃にて乾燥し、灰白色の固体を得る。収量:2261g(77%)。LC−MS:純度:100%a/a、tR=1.886min、[M+1]+=512;、1H−NMR(CDCl3):δ 7.43(s、2H)、7.34(s、1H)、7.12(s、1H)、5.16(s、2H)、4.52(quint、J=5.8Hz、1H)、4.21(dd、J1=8.3Hz、J2=6.9Hz、1H)、3.98(s、3H)、3.96(m、1H)、3.83(m、2H)、3.19(m、1H)、2.70(m、2H)、2.33(s、3H)、2.06(m、2H)、1.85(m、4H)、1.71(m、2H)、1.46(d、J=21.3Hz、6H)、1.25(t、J=7.6Hz、3H)。
(R)−N−((2−シクロペンチル−6−メトキシイソニコチノイル)オキシ)−4−((2,2−ジメチル−1,3−ジオキソラン−4−イル)メトキシ)−3−エチル−5−メチルベンゾイミドアミド
(2150g、1eq.)をトルエン(10L)中に混合したものを4h加熱還流する。水をDean Stark装置内で集める。溶液を、70℃にて、減圧下で濃縮乾固して、黄色のオイルを得る。収量:2116g(102%)。LC−MS:純度:96%a/a(4%a/a トルエン)、tR=2.665min、[M+1]+=494;1H−NMR(CDCl3):δ 7.87(d、J=6.3Hz、2H)、7.50(s、1H)、7.30(s、1H)、4.55(quint、J=5.8Hz、1H)、4.23(dd、J1=8.4Hz、J2=6.5Hz、1H)、4.01(m、4H)、3.90(m、2H)、3.24(m、1H)、2.77(m、2H)、2.40(s、3H)、2.09(m、2H)、1.88(m、4H)、1.73(m、2H)、1.50(s、3H)、1.48(d、J=22.0Hz、6H)、1.32(t、J=7.5Hz、3H)。
Agilent G1956B(MS、イオン化:ESI+、APCI)、Agilent G1312B Bin Pump、Agilent G1315C DAD、Agilent G1316B(温度制御されたカラムコンパートメント)、Agilent G1367C(オートサンプラー)。注入量:2μL;カラム:Kinetex C18、2.6μm、2.1x50mm;温度:40℃;流速:1mL/min;勾配:水/アセトニトリル:2.8minで95:5から5:95へ、次いで95:5で0.2min。
30LのBuechi反応器に、(R)−5−(2−シクロペンチル−6−メトキシピリジン−4−イル)−3−(4−((2,2−ジメチル−1,3−ジオキソラン−4−イル)メトキシ)−3−エチル−5−メチルフェニル)−1,2,4−オキサジアゾール(2.28kg、1eq.)及びEtOH(5L)を添加する。溶液を45℃に加熱し、1N
HCl(3L、0.75eq.)を添加する。得られた混合物を、45℃にて1h、さらに減圧下(400mbar)で3h撹拌する。混合物を32%NaOH(300mL、0.75eq.)で中和し、60℃にて、最小撹拌体積(ca.2L)に達するまで減圧下で濃縮する。反応器を窒素で常圧に設定する。残渣をEtOAc(20L)で希釈する。混合物を水(2x10L)で洗浄する。有機層を、60℃にて、減圧下で濃縮して、黄色のオイルを得る。収量:2053g(98%)。第2バッチを製造する;収量:1907g(98%)。
両バッチ(2053g+1907g)を合わせ、Pyrexフラスコ内でEtOAc(5.5L)中に溶解する(API溶液)。30Lの反応器に、結晶形Aの(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオール(14g)及びn−ヘプタン(30L)を添加する。懸濁液を40℃に加熱し、API溶液を、40℃にて、1hに渡って添加する。懸濁液を0.5hさらに撹拌し、20℃に冷却し、30LのBuechiヌッチェ上でろ過する。生成物をn−ヘプタン(6L)で洗浄する。生成物を、穏やかな窒素流を当ててヌッチェ上で2日間乾燥する。収量:3300g(83%)、純度(HPLC法):99.51%a/a;m.p.:約79℃(DSC)、結晶形Aの「化合物」(Fig.1)。1H−NMR(D6 DMSO):δ 7.78(s、2H)、7.53(s、1H)、7.26(s、1H)、4.98(d、J=4.6Hz、1H)、4.65(s、1H)、3.94(s、3H)、3.86(m、2H)、3.75(m、1H)、3.50(t、J=5.4Hz、2H)
、3.28(m、1H)、2.75(d、J=7.5Hz、2H)、2.35(s、3H)、2.03(m、2H)、1.81(m、4H)、1.69(m、2H)、1.22(t、J=7.5Hz、3H)。
HPLCシステム Agilent 1100;注入量:5μL;カラム:Zorbax
Eclipse XDB C18、3.5μm、150mmx4.6mm;温度:30℃;流速:1mL/min;検出波長:250nm;勾配:水/アセトニトリル:2.8minで95:5から5:95へ、次いで95:5で0.2min。溶出液:溶出液A:水/MeOH/TFA(95/5/0.05)、溶出液B:水/MeOH/TFA(5/95/0.05);勾配:0−1min 40%A、7−22min 0%A、22.1−27min 40%A。
非晶質「化合物」は、公開PCT出願WO2011/007324の実施例2に記載された方法により得ることができる。当該方法は下記の通りである:
a) 2−シクロペンチル−6−メトキシ−イソニコチン酸(162mg、0.732mmol)をDMF(2mL)及びTHF(10mL)中に溶解したものに、DIPEA(189mg、251μL、1.46mmol)、次いでTBTU(235mg、0.732mmol)を添加する。混合物をrtにて10min撹拌した後、(R)−4−(2,2−ジメチル−[1,3]ジオキソラン−4−イルメトキシ)−3−エチル−N−ヒドロキシ−5−メチル−ベンゾアミジン(226mg、0.732mmol)を添加する。混合物をrtにて1h撹拌した後、EtOAcで希釈し、水で洗浄する。有機層を分離し、濃縮する。残渣(375mg)をジオキサン(10mL)中に溶解し、混合物を105℃に18h加熱する。混合物をrtに冷却し、濃縮し、粗製の生成物を、10%のメタノールを含むDCMを用いて、薄層TLCプレート(シリカゲル、0.5mm)上で精製して、4−{3−[4−((R)−2,2−ジメチル−[1,3]ジオキソラン−4−イルメトキシ)−3−エチル−5−メチル−フェニル]−[1,2,4]オキサジアゾール−5−イル}−2−シクロペンチル−6−メトキシ−ピリジン(396mg)を黄色のオイルとして得る;LC−MS:tR=1.39min、[M+H]+=494.31。
H);図4に示すXRPDダイアグラム。
DAD(Agilent、スイス)を備えたLC−MS(Finnigan MSQ(登録商標) plus又はMSQ(登録商標) surveyor(Dionex、スイス);カラム:Zorbax RRHD SB−AQ、1.8μm、3.0x20mm(Agilent);勾配:1.2min以内に0.04%のトリフルオロ酢酸を含む5−95%のアセトニトリル水溶液、流速:1.6mL/min;tRは分で示す。)により特徴を明らかにした。
非晶質形態の「化合物」20mgを0.1mLのEtOAc中に溶解し、0.9mLのn−ヘプタンを1hに渡ってゆっくりと添加する。封止して、20−25℃にて一晩放置した後、生成した固体を集め、それは結晶形Aの「化合物」である。あるいは、25−30mgの非晶質形態の「化合物」を、5mLのEtOAc/n−ヘプタン 1/9(体積/体積)と混合し、70℃に加熱する。溶液を20−25℃に冷却し、次いで4℃にて一晩貯蔵する。得られた固体を集め、それが結晶形Aの「化合物」である。DSCにより、約66℃〜約88℃の範囲において、約79℃にピークを有する広域吸熱が観察される(結晶形Aのm.p.)。
0.5gの結晶形Aの「化合物」、2.5mLのDCM及び3mLのn−ヘプタンを混合し、(直径約9cmの)ペトリ皿内にろ過する。溶液を20−25℃にて一晩蒸発させる。固体残渣を集め、真空下で蒸発させる(2mbarで1h)。そのようにして得られた固体残渣は図2に示す結晶形Bの「化合物」である。DSCにより、約44℃〜約63℃の範囲において、約58℃にピークを有する広域吸熱が観察される(結晶形Bのm.p.)。
15mLの茶色のガラスバイアル内に、266mgの結晶形Aの「化合物」及び36mgの尿素を、10mLのメタノール中に溶解する。バイアルを開放して20−25℃にて放置し、溶媒を蒸発させる。すべての溶媒が蒸発したら速やかに、そして遅くとも1週間後に、10mLの水を添加し、試料を磁気撹拌により20−25℃にて5日間撹拌する。懸濁液をろ過し、回収した固体を2mbarにて1h乾燥する。そのようにして得られた固体残渣は図3に示す結晶形Cの「化合物」である。DSCにより、約30℃〜約60℃の範囲において、約48℃にピークを有する広域吸熱が観察される(結晶形Cのm.p.)。
方法:
重量測定蒸気吸着(GVS)分析:
測定は、25℃においてステッピングモードで作動するマルチサンプル装置SPS−100n(Projekt Messtechnik、ウルム、ドイツ)上で、結晶形A、B及びCの「化合物」について同時に行った。予め既定された湿度プログラム(40−0−95−0−95−40%RH、5%のDRHステップを適用し、各ステップ毎に最大24時間の平衡化時間を設けた。)を開始する前に、試料を40%RHで平衡化した。各試料を約20〜30mg使用した。吸湿性の分類は、the European Pharmacopea Technical Guide(1999、86頁)、例えば、非吸湿性:0.2%mass/mass未満の質量増加;わずかに吸湿性:質量増加が2%未満かつ0.2%mass/mass以上;吸湿性:質量増加が15%未満かつ2%mass/mass以上)に従って行った。最初の吸着スキャンにおける40%相対湿度と80%相対湿度との間の質量変化を考慮した。
形態A:0.2%未満の質量増加:非吸湿性
形態B:0.5%の質量増加:わずかに吸湿性
形態C:0.8%の質量増加:わずかに吸湿性
Claims (4)
- 粉末X線回折ダイアグラムにおける以下の屈折角2θ:4.2°、5.4°、8.0°、8.5°及び10.8°におけるピークの存在により特徴づけられる、化合物、(S)−3−{4−[5−(2−シクロペンチル−6−メトキシ−ピリジン−4−イル)−[1,2,4]オキサジアゾール−3−イル]−2−エチル−6−メチル−フェノキシ}−プロパン−1,2−ジオールの結晶。
- 粉末X線回折ダイアグラムにおいて、以下の屈折角2θ:4.2°、5.4°、8.0°、8.5°、10.8°、12.7°、14.4°、17.7°、20.4°及び21.3°におけるピークの存在により特徴づけられる、請求項1に記載の結晶。
- 示差走査熱量測定により決定した79℃±5℃の融点を有する、請求項1又は2に記載の結晶。
- 活性成分として請求項1〜3のいずれか1項に記載の結晶を含む、全身性エリテマトーデスの治療用又は予防用の医薬。
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