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JPS6232752B2 - - Google Patents
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JPS6232752B2 - - Google Patents

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Publication number
JPS6232752B2
JPS6232752B2 JP7474880A JP7474880A JPS6232752B2 JP S6232752 B2 JPS6232752 B2 JP S6232752B2 JP 7474880 A JP7474880 A JP 7474880A JP 7474880 A JP7474880 A JP 7474880A JP S6232752 B2 JPS6232752 B2 JP S6232752B2
Authority
JP
Japan
Prior art keywords
oxide
compound
methoxymethylmorphinone
morphine
formula
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP7474880A
Other languages
Japanese (ja)
Other versions
JPS572288A (en
Inventor
Naoki Myata
Keizo Watanabe
Masaaki Hirobe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kowa Co Ltd
Original Assignee
Kowa Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kowa Co Ltd filed Critical Kowa Co Ltd
Priority to JP7474880A priority Critical patent/JPS572288A/en
Publication of JPS572288A publication Critical patent/JPS572288A/en
Publication of JPS6232752B2 publication Critical patent/JPS6232752B2/ja
Granted legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は次の一般式() (式中、R1は水素原子又はアシル基を示し、R2
水素原子でR3が水酸基又はアシルオキシ基を示
すか、R2とR3が共同してオキソ基を示す) で表わされる新規なモルフイナン類の7・8−オ
キシド誘導体に関する。 モルフイン骨格を有する化合物の代謝について
は、すでに多数の代謝物が知られている。本発明
者らは、代謝物としてまだ確認されていないC環
の7、8位の2重結合の酸化成績体の存在を予測
して、コデイン−7・8−オキシドを合成し、こ
の化合物がコデインの代謝産物であることを確認
した。更に、本発明者らは上記()式で表わさ
れるモルフイナン類の7・8−オキシド誘導体、
特にモルヒネ−7・8−オキシドおよびモルヒノ
ン−7・8−オキシド並びにそのアシル体を合成
し、その薬理作用を検討した結果、これが優れた
薬理作用を有することを見出し、本発明を完成し
た。 従つて本発明は、鎮痛、鎮咳及び鎮静等の作用
を有する新規なモルフイナン類の7・8−オキシ
ド誘導体を提供するものである。 本発明の()式の化合物は例えば次の方法に
よつて製造される。 (1) モルヒネ−7・8−オキシド及びそのアシル
体(方法1): (式中、Acはアシル基を示す) すなわち、3−メトキシメチルモルヒノン
()を酸化して、3−メトキシメチルモルヒ
ノン−7・8−オキシド()となし、これを
還元して3−メトキシメチルモルヒネ−7・8
−オキシド()とし、次いでこれを酸加水分
解してモルヒネ−7・8−オキシド(a)を
製造する。更に(a)の化合物をアシル化す
れば3・6−ジアシルモルヒネ−7・8−オキ
シド(b)が製造される。 本方法の原料化合物である3−メトキシメチ
ルモルヒノン()は既に公知の化合物であ
り、例えばJournal of Organic Chemistry、
22、1489、(1957)に記載の方法によつて製造
される。 化合物()から化合物()を製造するに
は、化合物()に溶媒中塩基の存在又は不存
在下で酸化剤を作用させる。溶媒としては、例
えば水;メタノール、エタノール、イソプロパ
ノール等のアルコール類;塩化メチレン、クロ
ロホルム、塩化エチレン等のハロゲン化炭化水
素類等を単独もしくは組合せて使用できる。酸
化剤としては、例えば過酸化水素、ターシヤリ
ーブチルハイドロパーオキサイド等の過酸化物
を用いるのが好ましい。 反応は、塩基の存在下行うのが好ましく、塩
基としては炭酸アルカリ類、水酸化アルカリ
類、三級アミン類、4級アンモニウム塩等が挙
げられる。 酸化剤として過酸化水素を使用するときは、
反応は低温で数分乃至は十数分行えば完結し、
3−メトキシメチルモルヒノン−7・8−オキ
シド()が得られる。 化合物()から化合物()を製造するに
は、通常の還元方法を利用することができる
が、水素化金属類、例えば水素化ホウ素ナトリ
ウム、水素化アルミニウムリチウム等を用い
て、緩和な条件下で行うのが好ましい。 化合物()から化合物(a)を製造する
には、通常の酸加水分解方法を利用することが
できるが、鉱酸類、例えば希塩酸、希硫酸等を
用いて緩和な条件下で行うのが好ましい。 モルヒネ−7・8−オキシド(a)のアシ
ル化は、適当なアシル化剤を用いて常法によつ
て(a)の化合物をアシル化すれば目的物で
ある3・6−ジアシルモルヒネ−7・8−オキ
シド(b)が得られる。(b)式中Acで表
わされるアシル基としては、アセチル基、プロ
ピオニル基、ブチリル基等の脂肪族飽和カルボ
ン酸;ベンゾイル基、トルオイル基等の芳香族
カルボン酸等から導かれるものが挙げられる。 (2) モルヒノン−7・8−オキシド及びそのアシ
ル体(方法2): (式中、Acは前記と同じ意味を有する) すなわち、3−メトキシメチルモルヒノン−
7・8−オキシド()を酸加水分解してモル
ヒノン−7・8−オキシド(c)を製造し、
次いで(c)の化合物をアシル化して3−ア
シルモルヒノン−7・8−オキシド(d)を
製造する。 本方法は方法1における還元反応を行なわない
以外は全て同様にして実施される。 斯くして得られる本発明の()式の化合物の
薬理作用を示せば次のとおりである。 (1) 摘出実験 モルモツト回腸平滑筋の攣縮反応を50%抑制
する濃度は、モルヒネに対してモルヒネ−7・
8−オキシドが同程度、また3・6−ジアセチ
ルモルヒネ(ヘロイン)に対して3・6−ジア
セチルモルヒネ−7・8−オキシド(ヘロイン
−7・8−オキシド)が同程度であり、このこ
とから本化合物が、モルヒネおよびヘロインと
同程度の鎮痛効果を有することが示された。 (2) 生体実験 雄性ラツトを用いて、ランダール・セリツト
(Randall−Selitto)法により鎮痛作用を検討し
た結果、モルヒネ−7・8−オキシドはモルヒ
ネの2.3倍の鎮痛作用を示した。また3・6−
ジアセチルモルヒネ−7・8−オキシドは3・
6−ジアセチルモルヒネの2.3倍の鎮痛作用を
示した。 次に実施例を挙げて説明する。 実施例 1 3−メトキシメチルモルヒノン−7・8−オキ
シド: 3−メトキシメチルモルヒノン400mgを室温に
てメチルアルコール20mlに溶解し、氷冷下3%過
酸化水素水15mlおよび0.1規定水酸化ナトリウム
15mlを加えて、0℃にて30分間撹拌した。反応液
をすばやく二塩化メチレンにて抽出し、水洗後芒
硝で乾燥し、溶媒を減圧下留去した。残渣456mg
を中性シリカゲル(Merck Art No.7734)50g
を用いてカラムクロマトグラフイーにより精製
し、二塩化メチレンとメチルアルコールの混合比
92:8の流出部より結晶を得た(融点87〜92℃、
収率81.0%)。このものをメチルアルコールより
再結晶すると、融点121.5〜122.5℃を示す無色針
状晶の3−メトキシメチルモルヒノン−7・8−
オキシドを得た。 元素分析値:C19H21O5N・CH3OH C H N 計算値(%):65.69 7.25 4.03 実験値(%):64.85 7.04 3.62 1H−NMR値:δTMS CDCl3ppm 2.40(3H、s、N−CH3) 3.53(3H、s、O−CH3) 4.57(1H、s、5−H) Mass:343(M+) 実施例 2 3−メトキシメチルモルヒネ−7・8−オキシ
ド: 実施例1で得られた3−メトキシメチルモルヒ
ノン−7・8−オキシド367mgをメチルアルコー
ル20mlに溶解し、水素化ホウ素ナトリウム81mgを
加えて0℃にて1時間撹拌した。反応液に水20ml
を加えたのち二塩化メチレンにて抽出し、水洗後
芒硝で乾燥し、溶媒を留去すると、無色油状物
339mgを得た。中性シリカゲル(Merck Art No.
7734)50gを用いてカラムクロマトグラフイーに
より精製し、二塩化メチレンとメチルアルコール
の混合比95:5の流出部より無色油状物の3−メ
トキシメチルモルヒネ−7・8−オキシド235mg
(収率66%)を得た。 1H−NMR値:δTMS CDCl3ppm 2.40(3H、s、N−CH3) 3.42(3H、s、O−CH3) 4.70(1H、d、J=5Hz、5−H) Mass:345(M+) IR:C=O吸収消失 実施例 3 モルヒネ−7・8−オキシド: 実施例2で得られた3−メトキシメチルモルヒ
ネ−7・8−オキシド235mgを1規定塩酸10mlに
溶解し、室温にて2時間撹拌した。反応後、1規
定アンモニア水にてPH8.7としたのち、晶出する
結晶を取し、メチルアルコールから再結晶する
と、融点241〜242℃(分解)を示す無色針状晶の
モルヒネ−7・8−オキシド150mg(収率73.1
%)を得た。 元素分析値:C17H19NO4 C H N 計算値(%):67.76 6.36 4.65 実験値(%):67.49 6.38 4.63 1H−NMR値:δTMS CDCl3ppm 2.46(3H、s、N−CH3) 4.68(1H、d、J=5Hz、5−H) 3.6(2H、q+q、6−H、7−H) 13C−NMR値:δTMS CDCl3ppm 67.7(6位の炭素) 53.0、54.7、59.3(7位、8位、9位の炭素) Mass:301(M+) 272(M+−29) 216(M+−85)base peak 実施例 4 3・6−ジアセチルモルヒネ−7・8−オキシ
ド(ヘロイン−7・8−オキシド): 実施例3で得られたモルヒネ−7・8−オキシ
ド46mgを無水ピリジン2mlに溶解し、次いで無水
酢酸2mlを加えて室温にて4日間撹拌した。反応
後、飽和重炭酸ナトリウム溶液5mlを加え、二塩
化メチレンで抽出した。水洗後芒硝で乾燥し、溶
媒を減圧下留去すると淡黄色油状物49mgを得た。
中性シリカゲル(Merck Art No.7734)25gを
用いてカラムクロマトグラフイーにより精製し、
二塩化メチレンとメチレンアルコールの混合比
95:5の流出部より無色油状物の3・6−ジアセ
チルモルヒネ−7・8−オキシド37mg(収率63
%)を得た。 1H−NMR値:δTMS CDCl3ppm 2.19(3H、s、
The present invention is based on the following general formula () (In the formula, R 1 represents a hydrogen atom or an acyl group, R 2 represents a hydrogen atom, R 3 represents a hydroxyl group or an acyloxy group, or R 2 and R 3 jointly represent an oxo group) The present invention relates to 7,8-oxide derivatives of morphinans. Regarding the metabolism of compounds having a morphine skeleton, a large number of metabolites are already known. The present inventors synthesized codeine-7,8-oxide by predicting the existence of an oxidized product of the double bond at positions 7 and 8 of the C ring, which has not yet been confirmed as a metabolite. It was confirmed that it is a metabolite of codeine. Furthermore, the present inventors have prepared a 7,8-oxide derivative of morphinane represented by the above formula (),
In particular, as a result of synthesizing morphine-7,8-oxide, morphinone-7,8-oxide, and their acyl derivatives and studying their pharmacological effects, it was discovered that they have excellent pharmacological effects, and the present invention was completed. Accordingly, the present invention provides novel 7,8-oxide derivatives of morphinans having analgesic, antitussive, and sedative effects. The compound of formula () of the present invention can be produced, for example, by the following method. (1) Morphine-7,8-oxide and its acyl derivative (method 1): (In the formula, Ac represents an acyl group.) That is, 3-methoxymethylmorphinone () is oxidized to form 3-methoxymethylmorphinone-7,8-oxide (), which is reduced to form 3-methoxymethylmorphinone-7,8-oxide (). Methoxymethylmorphine-7/8
-oxide (), which is then acid-hydrolyzed to produce morphine-7,8-oxide (a). Further, by acylating the compound (a), 3,6-diacylmorphine-7,8-oxide (b) is produced. 3-Methoxymethylmorphinone (), which is the raw material compound for this method, is a known compound, for example, in the Journal of Organic Chemistry,
22 , 1489, (1957). To produce compound () from compound (), compound () is treated with an oxidizing agent in the presence or absence of a base in a solvent. As the solvent, for example, water; alcohols such as methanol, ethanol, and isopropanol; halogenated hydrocarbons such as methylene chloride, chloroform, and ethylene chloride can be used alone or in combination. As the oxidizing agent, it is preferable to use peroxides such as hydrogen peroxide and tert-butyl hydroperoxide. The reaction is preferably carried out in the presence of a base, and examples of the base include alkali carbonates, alkali hydroxides, tertiary amines, and quaternary ammonium salts. When using hydrogen peroxide as an oxidizing agent,
The reaction is completed in a few minutes to ten minutes at a low temperature.
3-Methoxymethylmorphinone-7,8-oxide () is obtained. In order to produce compound () from compound (), ordinary reduction methods can be used. It is preferable to do so. In order to produce compound (a) from compound (), a conventional acid hydrolysis method can be used, but it is preferably carried out under mild conditions using mineral acids such as dilute hydrochloric acid and dilute sulfuric acid. Acylation of morphine-7,8-oxide (a) can be achieved by acylating compound (a) using an appropriate acylating agent in a conventional manner to obtain the desired product, 3,6-diacylmorphine-7. - 8-oxide (b) is obtained. The acyl group represented by Ac in the formula (b) includes those derived from aliphatic saturated carboxylic acids such as acetyl, propionyl and butyryl groups; aromatic carboxylic acids such as benzoyl and toluoyl groups. (2) Morphinone-7,8-oxide and its acyl form (method 2): (In the formula, Ac has the same meaning as above.) That is, 3-methoxymethylmorphinone-
Acid hydrolysis of 7,8-oxide () to produce morphinone-7,8-oxide (c),
The compound (c) is then acylated to produce 3-acylmorphinone-7,8-oxide (d). This method is carried out in the same manner as in Method 1 except that the reduction reaction is not performed. The pharmacological action of the compound of formula () of the present invention thus obtained is as follows. (1) Extraction experiment The concentration that suppresses the spasm response of guinea pig ileal smooth muscle by 50% is morphine-7.
8-oxide is at the same level, and 3,6-diacetylmorphine (heroin) is at the same level as 3,6-diacetylmorphine-7,8-oxide (heroin-7,8-oxide). This compound was shown to have an analgesic effect comparable to that of morphine and heroin. (2) Living experiment The analgesic effect was examined using the Randall-Selitto method using male rats. As a result, morphine-7,8-oxide showed an analgesic effect 2.3 times that of morphine. Also 3.6-
Diacetylmorphine-7,8-oxide is 3.
It showed 2.3 times the analgesic effect of 6-diacetylmorphine. Next, an example will be given and explained. Example 1 3-methoxymethylmorphinone-7,8-oxide: 400 mg of 3-methoxymethylmorphinone was dissolved in 20 ml of methyl alcohol at room temperature, and 15 ml of 3% hydrogen peroxide and 0.1N sodium hydroxide were added under ice cooling.
15 ml was added and stirred at 0°C for 30 minutes. The reaction solution was quickly extracted with methylene dichloride, washed with water, dried over sodium sulfate, and the solvent was distilled off under reduced pressure. Residue 456mg
50g of neutral silica gel (Merck Art No.7734)
The mixture ratio of methylene dichloride and methyl alcohol was purified by column chromatography using
Crystals were obtained from the outflow part of 92:8 (melting point 87-92℃,
yield 81.0%). When this product is recrystallized from methyl alcohol, 3-methoxymethylmorphinone-7,8-
Obtained oxide. Elemental analysis value: C 19 H 21 O 5 N・CH 3 OH C H N Calculated value (%): 65.69 7.25 4.03 Experimental value (%): 64.85 7.04 3.62 1 H-NMR value: δ TMS CDCl3 ppm 2.40 (3H, s, N-CH 3 ) 3.53 (3H, s, O-CH 3 ) 4.57 (1H, s, 5-H) Mass: 343 (M + ) Example 2 3-Methoxymethylmorphine-7,8-oxide: 367 mg of 3-methoxymethylmorphinone-7,8-oxide obtained in Example 1 was dissolved in 20 ml of methyl alcohol, 81 mg of sodium borohydride was added, and the mixture was stirred at 0°C for 1 hour. 20ml of water to the reaction solution
was added, extracted with methylene dichloride, washed with water, dried with Glauber's salt, and the solvent was distilled off, leaving a colorless oil.
Obtained 339 mg. Neutral silica gel (Merck Art No.
7734) was purified by column chromatography using 50 g, and 235 mg of 3-methoxymethylmorphine-7,8-oxide was obtained as a colorless oil from the outflow of a mixture ratio of methylene dichloride and methyl alcohol of 95:5.
(yield 66%). 1 H-NMR value: δ TMS CDCl3 ppm 2.40 (3H, s, N-CH 3 ) 3.42 (3H, s, O-CH 3 ) 4.70 (1H, d, J=5Hz, 5-H) Mass: 345 ( M + ) IR: C=O absorption disappearance Example 3 Morphine-7,8-oxide: 235 mg of 3-methoxymethylmorphine-7,8-oxide obtained in Example 2 was dissolved in 10 ml of 1N hydrochloric acid, and the solution was heated to room temperature. The mixture was stirred for 2 hours. After the reaction, the pH was adjusted to 8.7 with 1N aqueous ammonia, and the precipitated crystals were collected and recrystallized from methyl alcohol. 8-oxide 150 mg (yield 73.1
%) was obtained. Elemental analysis value: C 17 H 19 NO 4 C H N Calculated value (%): 67.76 6.36 4.65 Experimental value (%): 67.49 6.38 4.63 1 H-NMR value: δ TMS CDCl3 ppm 2.46 (3H, s, N-CH 3 ) 4.68 (1H, d, J=5Hz, 5-H) 3.6 (2H, q+q, 6-H, 7-H) 13 C-NMR value: δ TMS CDCl3 ppm 67.7 (carbon at position 6) 53.0, 54.7 , 59.3 (carbons at positions 7, 8, and 9) Mass: 301 (M + ) 272 (M + -29) 216 (M + -85) base peak Example 4 3,6-Diacetylmorphine-7,8 -Oxide (heroin-7,8-oxide): 46 mg of morphine-7,8-oxide obtained in Example 3 was dissolved in 2 ml of anhydrous pyridine, then 2 ml of acetic anhydride was added and stirred at room temperature for 4 days. After the reaction, 5 ml of saturated sodium bicarbonate solution was added and extracted with methylene dichloride. After washing with water and drying with sodium sulfate, the solvent was distilled off under reduced pressure to obtain 49 mg of a pale yellow oil.
Purified by column chromatography using 25 g of neutral silica gel (Merck Art No. 7734),
Mixing ratio of methylene dichloride and methylene alcohol
37 mg of 3,6-diacetylmorphine-7,8-oxide (yield: 63
%) was obtained. 1 H-NMR value: δ TMS CDCl3 ppm 2.19 (3H, s,

【式】) 2.32(3H、s、【formula】) 2.32 (3H, s,

【式】) 2.43(3H、s、N−CH3) 2.87(1H、d−d、8−H) 3.63(1H、d−d、7−H) 4.59(1H、d−d、6−H) 4.82(1H、d、J=5Hz、5−H) Mass:385(M+) 実施例 5 モルヒノン−7・8−オキシド: 実施例1で得られた3−メトキシメチルモルヒ
ノン−7・8−オキシド69mgを1規定塩酸10mlに
溶解し、室温にて2時間撹拌した。反応後氷冷し
1規定アンモニア水ですばやくPH8.7に調整し、
すみやかに二塩化メチレンで抽出した。水洗後芒
硝で乾燥し、溶媒を減圧下留去すると、融点94〜
98℃を示す白色粉末のモルヒノン−7・8−オキ
シド19mg(収率32%)を得た。 1H−NMR値:δTMS CDCl3ppm 2.44(3H、s、N−CH3) 4.68(1H、s、5−H) Mass:299(M+
[Formula]) 2.43 (3H, s, N-CH 3 ) 2.87 (1H, dd, 8-H) 3.63 (1H, dd, 7-H) 4.59 (1H, dd, 6-H ) 4.82 (1H, d, J=5Hz, 5-H) Mass: 385 (M + ) Example 5 Morhinone-7,8-oxide: 3-methoxymethylmorphinone-7,8 obtained in Example 1 -69 mg of oxide was dissolved in 10 ml of 1N hydrochloric acid and stirred at room temperature for 2 hours. After the reaction, cool on ice and quickly adjust the pH to 8.7 with 1N ammonia water.
It was immediately extracted with methylene dichloride. After washing with water, drying with Glauber's salt and distilling off the solvent under reduced pressure, the melting point was 94 ~
19 mg (yield: 32%) of morphinone-7,8-oxide as a white powder having a temperature of 98°C was obtained. 1 H-NMR value: δ TMS CDCl3 ppm 2.44 (3H, s, N-CH 3 ) 4.68 (1H, s, 5-H) Mass: 299 (M + )

Claims (1)

【特許請求の範囲】 1 次の一般式() (式中、R1は水素原子又はアシル基を示し、R2
水素原子でR3が水酸基又はアシルオキシ基を示
すか、R2とR3が共同してオキソ基を示す) で表わされるモルフイナン類の7・8−オキシド
誘導体。
[Claims] First-order general formula () (In the formula, R 1 represents a hydrogen atom or an acyl group, R 2 represents a hydrogen atom, R 3 represents a hydroxyl group or an acyloxy group, or R 2 and R 3 jointly represent an oxo group) 7,8-oxide derivatives of the class.
JP7474880A 1980-06-03 1980-06-03 7, 8-oxide derivative of morphinan Granted JPS572288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7474880A JPS572288A (en) 1980-06-03 1980-06-03 7, 8-oxide derivative of morphinan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7474880A JPS572288A (en) 1980-06-03 1980-06-03 7, 8-oxide derivative of morphinan

Publications (2)

Publication Number Publication Date
JPS572288A JPS572288A (en) 1982-01-07
JPS6232752B2 true JPS6232752B2 (en) 1987-07-16

Family

ID=13556179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7474880A Granted JPS572288A (en) 1980-06-03 1980-06-03 7, 8-oxide derivative of morphinan

Country Status (1)

Country Link
JP (1) JPS572288A (en)

Also Published As

Publication number Publication date
JPS572288A (en) 1982-01-07

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