JPS5849543B2 - Pyrazole - Google Patents
PyrazoleInfo
- Publication number
- JPS5849543B2 JPS5849543B2 JP7153474A JP7153474A JPS5849543B2 JP S5849543 B2 JPS5849543 B2 JP S5849543B2 JP 7153474 A JP7153474 A JP 7153474A JP 7153474 A JP7153474 A JP 7153474A JP S5849543 B2 JPS5849543 B2 JP S5849543B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- melting point
- elemental analysis
- dimethylcarbamoyl
- colorless
- 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
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
【発明の詳細な説明】
本発明は下記ブ般式
(式中RはC1〜C5を含有するアルキル基を、nは0
または1をそれぞれ表わし、Xはn=oのとき,水素、
塩素、臭素、メチル基、メトキシ基、ニトロ基、トリフ
ルオロメチル基または3・4ジクロロ基を、n=1のと
き、塩素をそれぞれ表わす)で示される新規なピラゾー
ル誘導体の製法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the following general formula (wherein R is an alkyl group containing C1 to C5, and n is 0
or 1 respectively, and when n=o, X is hydrogen,
The present invention relates to a method for producing a novel pyrazole derivative represented by chlorine, bromine, methyl group, methoxy group, nitro group, trifluoromethyl group, or 3,4 dichloro group (when n=1, each represents chlorine).
本新規化合物■は下記=般式
(式中R,n,Xは前記せると同一の意味を表わす)で
示される3 −N−メチルカルバモイルピラゾール誘導
体の金属塩にメチル化剤を反応させることにより容易に
製造することができる。This new compound (■) is obtained by reacting a methylating agent with a metal salt of a 3-N-methylcarbamoyl pyrazole derivative represented by the following general formula (in which R, n, and X have the same meanings as shown above). It can be easily manufactured.
即ち、本発明方法によれば本原料物質Hの3位カルバモ
イル基のN−メチル化は,原料物質■を有機溶媒,例え
ばあらかじめ脱水したトルエン、キシレン、ジオキサン
などにげん濁しておき、次にこSえ水素化リチウム、水
素化ナトリウムなどを加えて加熱し金属塩となし、次い
でこの溶液にメチル化剤、例えばジメチル硫酸、ヨード
メチルなどを過剰に加えて2〜5時間加熱還流すること
により容易に進行する。That is, according to the method of the present invention, the N-methylation of the carbamoyl group at the 3-position of the raw material H is carried out by suspending the raw material I in an organic solvent such as toluene, xylene, dioxane, etc. that has been previously dehydrated. Lithium hydride, sodium hydride, etc. are added and heated to form a metal salt, and then an excess of a methylating agent such as dimethyl sulfate, iodomethyl, etc. is added to this solution, and the mixture is easily heated under reflux for 2 to 5 hours. proceed.
この場合メチル化剤としてヨードメチルなどの低沸点物
質を使用するときは反応をオートクレープ中で行うと有
利である。If low-boiling substances such as iodomethyl are used as methylating agent in this case, it is advantageous to carry out the reaction in an autoclave.
かくして得られる本新規化合物■は強力な鎮痛、抗炎症
作用を有するので医薬品として有用である。The novel compound (2) thus obtained has strong analgesic and anti-inflammatory effects and is therefore useful as a pharmaceutical.
1例を示せば一般式■で示される化合物のうち1(m−
クロロフエニル)−3−N−N−ジメチルカルバモイル
ー5−メトキシピラゾールのカラゲニンによるラット足
踏浮腫抑制作用は100■/ky経口投与で2、3、4
時間値が661%、73.5%、63.2%の抑制率を
示し、対照薬のフルフエナム酸(61.8%,52.6
%、44.1%)より優れた効果を示した。To give an example, among the compounds represented by the general formula (■), one (m-
The inhibitory effect of chlorophenyl-3-N-N-dimethylcarbamoyl-5-methoxypyrazole on rat paw edema induced by carrageenan was 2, 3, 4 after oral administration at 100 μ/ky.
The time values showed inhibition rates of 661%, 73.5%, and 63.2%, and the control drug flufenamic acid (61.8%, 52.6%)
%, 44.1%).
また1−(m−}IJフルオロメチルフエニル)−3−
N−N−ジメチル力ルバモイル−5−n−ブトキシピラ
ゾールの鎮痛効力は酢酸による化学的刺激法でアミノピ
リンの4倍を示した。Also 1-(m-}IJ fluoromethylphenyl)-3-
The analgesic efficacy of N-N-dimethylrubamoyl-5-n-butoxypyrazole was 4 times that of aminopyrine when chemically stimulated with acetic acid.
次に実施例をあげて更に詳細に説明する。Next, the present invention will be explained in more detail with reference to examples.
実施例 1
1−(m−クロロフエニル) −3 −N−メチルカル
バモイルー5−メトキシピラゾール2.71と水素化ナ
トリウム(50%)1グをキシレン20M中に加え2時
間加熱還流する。Example 1 2.71 l-(m-chlorophenyl)-3-N-methylcarbamoyl-5-methoxypyrazole and 1 g of sodium hydride (50%) were added to 20M xylene and heated under reflux for 2 hours.
次にこの溶液にジメチル硫酸2.51を少量宛滴下する
。Next, a small amount of 2.5 liters of dimethyl sulfate was added dropwise to this solution.
のちさらに3時間加熱還流後反応液を冷却する。Thereafter, the reaction solution was further heated under reflux for 3 hours, and then cooled.
不溶物を沢去し、F液に石油エーテルを加え析出する結
晶を沢取、含水メタノールから再結晶する。Insoluble materials are removed, petroleum ether is added to solution F, and the precipitated crystals are collected and recrystallized from water-containing methanol.
無色プリズム晶、熔融点98〜99℃の1−(m−クロ
ロフエニル)−3−N −N−ジメチルカルハモイルー
5−メトキシピラゾール1.71を得る。1.71 of 1-(m-chlorophenyl)-3-N-N-dimethylcarhamoyl-5-methoxypyrazole is obtained as colorless prism crystals and having a melting point of 98-99°C.
元素分析値( C13H1402N3C l = 2
7 9. 7 2 8として)
計算値(%):C、55.82 H、5.04N,1
5.02
実測値(%):C、55、98 H、5.00N1
15.13
実施例 2
1−(p−クロロベンジル) −3 −N−メチルカル
バモイルー5−n−ブトキシピラゾール3.21と水素
化リチウム0. 3 ?をトルエン20ml中にとり、
水素ガスの発生が止むまで加熱還流する。Elemental analysis value (C13H1402N3Cl = 2
7 9. 7 2 8) Calculated value (%): C, 55.82 H, 5.04 N, 1
5.02 Actual value (%): C, 55, 98 H, 5.00N1
15.13 Example 2 1-(p-chlorobenzyl)-3-N-methylcarbamoyl-5-n-butoxypyrazole 3.21 and lithium hydride 0. 3? Take it in 20ml of toluene,
Heat under reflux until hydrogen gas evolution stops.
のちとのけん濁液とヨードメチル5グをオートクレープ
中にとり密封して3時間加熱還流する。The suspension and 5 g of methyl iodo were placed in an autoclave, sealed, and heated under reflux for 3 hours.
のち溶媒を留去し残渣を水洗後乾燥する。Afterwards, the solvent is distilled off, and the residue is washed with water and dried.
のちこれをエーテルー石油エーテル混液から再結晶し、
無色針状晶、熔融点60〜61℃の1−(p−クロロベ
ンジル) −3−N−N−ジメチルカルハモイルー5−
n−ブトキシピラゾール1.71を得る。This was later recrystallized from an ether-petroleum ether mixture,
1-(p-chlorobenzyl)-3-N-N-dimethylcarhamoyl-5-, colorless needle crystals, melting point 60-61°C
1.71 of n-butoxypyrazole is obtained.
元素分析値( C17H2202N3C 1 = 3
3 5. 8 3 7として)
計算値(%):C、60.80H、6.60N112.
51
実測値(%):C、60.98H、667N112.3
6
実施例 3〜28
前2例と同様にして以下にあげるピラゾール誘導体を製
造した。Elemental analysis value (C17H2202N3C 1 = 3
3 5. 8 3 7) Calculated value (%): C, 60.80H, 6.60N112.
51 Actual value (%): C, 60.98H, 667N112.3
6 Examples 3 to 28 The following pyrazole derivatives were produced in the same manner as in the previous two examples.
実施例 3
1−(m−ト’)フルオロメチルフェニル)−3N−N
−ジメチルカルバモイル−5 −fi −7トキシピラ
ゾール
n−ペンタンから再結晶。Example 3 1-(m-t')fluoromethylphenyl)-3N-N
-dimethylcarbamoyl-5-fi-7 Toxypyrazole Recrystallized from n-pentane.
無色柱状晶、熔融点66〜68℃。Colorless columnar crystals, melting point 66-68°C.
元素分析値( C I7H200 2N3F″3=35
5.363として)
計算値(%):C、57.46H、5.67N1 11
.82
実測値(%):C、57.40H、5.68N,11.
64
実施例 4
1−(m−}’)フルオロメチルフエニル)−3N−N
−ジメチルカルバモイル−5−プロポキシピラゾール
石油ベンジンから再結晶。Elemental analysis value (CI7H200 2N3F″3=35
5.363) Calculated value (%): C, 57.46H, 5.67N1 11
.. 82 Actual measurement value (%): C, 57.40H, 5.68N, 11.
64 Example 4 1-(m-}')fluoromethylphenyl)-3N-N
-Dimethylcarbamoyl-5-propoxypyrazole Recrystallized from petroleum benzine.
無色プリズム晶、熔融点83〜84℃。Colorless prismatic crystal, melting point 83-84°C.
元素分析値(C16H1802N3F3−341,33
6として)
計算値(%)二C、56.30H、5,32N,12.
31
実測値(%):C156.43 H15.39N1
12.25
実施例 5
1−(m−} ’)フルオロメチルフエニル)−3N−
N−ジメチルカルバモイル−5−エトキシピラゾール
石油ベンジンから再結晶。Elemental analysis value (C16H1802N3F3-341,33
6) Calculated value (%) 2C, 56.30H, 5,32N, 12.
31 Actual value (%): C156.43 H15.39N1
12.25 Example 5 1-(m-}')fluoromethylphenyl)-3N-
N-Dimethylcarbamoyl-5-ethoxypyrazole Recrystallized from petroleum benzine.
無色針状晶、熔融点83〜84℃。Colorless needle crystals, melting point 83-84°C.
元素分析値(C15H1602N3F3−327.30
9として)
計算値(%):C、55.05H、493N112.8
4
実測値(%)二C、55.16H、4.83N112.
76
実施例 6
1−(m−} ’)フルオロメチルフエニル)−3N−
N−ジメチルカルバモイルー5−メトキシピラゾール
ベンゼンー石油エーテル混液から再結晶。Elemental analysis value (C15H1602N3F3-327.30
9) Calculated value (%): C, 55.05H, 493N112.8
4 Actual value (%) 2C, 55.16H, 4.83N112.
76 Example 6 1-(m-}')fluoromethylphenyl)-3N-
N-Dimethylcarbamoyl-5-methoxypyrazole Recrystallized from a benzene-petroleum ether mixture.
無色針状晶、熔融点116〜117℃。Colorless needle crystals, melting point 116-117°C.
元素分析値(C14H1402N3F3−313.28
2として)
計算値(%):C、53、68 H、450N113
.41
実測値(%):C、53.81H、446N,13.2
9
実施例 7
1−(p−クロロフエニル)−3−N−N−ジメチルカ
ルバモイルー5−n−ブトキシピラゾーノレ
エーテルー石油エーテル混液から再結晶。Elemental analysis value (C14H1402N3F3-313.28
2) Calculated value (%): C, 53, 68 H, 450N113
.. 41 Actual value (%): C, 53.81H, 446N, 13.2
9 Example 7 Recrystallization from a mixture of 1-(p-chlorophenyl)-3-N-N-dimethylcarbamoyl-5-n-butoxypyrazone ether-petroleum ether.
無色針状晶、熔融点94〜95℃。Colorless needle crystals, melting point 94-95°C.
元素分析値( C16H2002N3Cl = 3 2
1.8 1 0として)
計算値(%):C、59.72 H,6.26N11
3.06
実測値(%)二〇、59.86H、6.21N1 12
.85
実施例 8
1−(p−クロロフエニル) −3−N−N−ジメチル
カルバモイルー5−n−プロポキシピラゾール
エーテルー石油エーテル混液から再結晶。Elemental analysis value (C16H2002N3Cl = 3 2
1.8 1 0) Calculated value (%): C, 59.72 H, 6.26N11
3.06 Actual value (%) 20, 59.86H, 6.21N1 12
.. 85 Example 8 Recrystallized from a mixture of 1-(p-chlorophenyl)-3-N-N-dimethylcarbamoyl-5-n-propoxypyrazole ether-petroleum ether.
無色プリズム晶、熔融点83〜84℃。Colorless prism crystal, melting point 83-84°C.
元素分析値(C15H1802N3Cl−307.78
3として)
計算値(%):C15 8.54 H15.89N,
13.65
実測値(%)二C、58.59H、5.72N,13.
52
実施例 9
1−(p−クロロフエニル)−3−N−N−ジメチルカ
ルバモイルー5−エトキシピラゾールエーテルー石油エ
ーテル混液から再結晶。Elemental analysis value (C15H1802N3Cl-307.78
3) Calculated value (%): C15 8.54 H15.89N,
13.65 Actual value (%) 2C, 58.59H, 5.72N, 13.
52 Example 9 Recrystallization from a mixture of 1-(p-chlorophenyl)-3-N-N-dimethylcarbamoyl-5-ethoxypyrazole ether-petroleum ether.
無色針状晶、熔融点107〜108℃。Colorless needle crystals, melting point 107-108°C.
元素分析値(C14H1602N3Cl−293.75
6として)
計算値(%):C,57.24 H、5.49N,1
4.30
実測値(%):C、57.38H、5.41N,14.
20
実施例 10
1−(p−クロロフエニル’)−3−N−N−ジメチル
カルバモイルー5−メトキシピラゾールエーテルー石油
エーテル混液から再結晶。Elemental analysis value (C14H1602N3Cl-293.75
6) Calculated value (%): C, 57.24 H, 5.49N, 1
4.30 Actual value (%): C, 57.38H, 5.41N, 14.
20 Example 10 Recrystallization from a mixture of 1-(p-chlorophenyl')-3-N-N-dimethylcarbamoyl-5-methoxypyrazole ether-petroleum ether.
無色柱状晶、熔融点116〜118℃。Colorless columnar crystals, melting point 116-118°C.
元素分析値( C13H1402N3C 1 = 2
7 9.7 2 8として)
計算値(%) :C, 5 5.82 H, 5.0
4N,15.02
実測値(%)二〇、55.83 H,5.13N,1
4.98
実施例 11
1−フエニル−3−N−N−ジメチルカルバモイルー5
−n−アミロキシピラゾール
石油エーテルから再結晶。Elemental analysis value (C13H1402N3C 1 = 2
7 9.7 2 8) Calculated value (%): C, 5 5.82 H, 5.0
4N, 15.02 Actual value (%) 20, 55.83 H, 5.13N, 1
4.98 Example 11 1-Phenyl-3-N-N-dimethylcarbamoyl 5
-n-amyloxypyrazole Recrystallized from petroleum ether.
無色板状晶、熔融点69〜70′co
?素分析値(C1H2302N3−301.392とし
て)計算値(%):C、67.75H、7.69N,1
3.94
実測値(%)二〇、67.88H、7.78N1 13
.81
実施例 12
1−フエニル−3一N−N−ジメチルカルバモイルー5
−インアミロキシピラゾール
石油エーテルから再結晶。Colorless plate-like crystals, melting point 69-70'co? Elementary analysis value (as C1H2302N3-301.392) Calculated value (%): C, 67.75H, 7.69N, 1
3.94 Actual value (%) 20, 67.88H, 7.78N1 13
.. 81 Example 12 1-Phenyl-3-N-N-dimethylcarbamoyl 5
-inamyloxypyrazole recrystallized from petroleum ether.
無色プリズム晶、熔融点55〜56℃。Colorless prismatic crystal, melting point 55-56°C.
元素分析値(C1H2302N3= 3 0 1. 3
9 2として)計算値(%)二〇、67.75H、7
.69N113.94
実測値(%)二〇、67.81H、7.77N113.
75
実施例 13
1−フエニル−3−N−N−−)メチルカルハモイルー
5−n−ブトキシピラゾール
エーテルー石油エーテル混液から再結晶。Elemental analysis value (C1H2302N3= 3 0 1. 3
9 2) Calculated value (%) 20, 67.75H, 7
.. 69N113.94 Actual value (%) 20, 67.81H, 7.77N113.
75 Example 13 Recrystallization from a mixture of 1-phenyl-3-N-N--)methylcarhamoyl-5-n-butoxypyrazole ether and petroleum ether.
無色板状晶、熔融点88〜90℃。Colorless plate-like crystals, melting point 88-90°C.
元素分析値(C16H202N3=2 8 7.3 6
5として)計算値(%):C,66.88 H、7
.37N114.62
実測値(%)二〇、67.OIH、7.32N114.
57
実施例 14
■−フエニル−3−N−N−ジメチルカルバモイルー5
−n−プロポキシピラゾール
エーテル−石油エーテル混液から再結晶。Elemental analysis value (C16H202N3=2 8 7.3 6
5) Calculated value (%): C, 66.88 H, 7
.. 37N114.62 Actual value (%) 20, 67. OIH, 7.32N114.
57 Example 14 ■-Phenyl-3-N-N-dimethylcarbamoyl 5
- Recrystallization from n-propoxypyrazole ether-petroleum ether mixture.
無色板状晶、熔融点84〜85゜Co
元素分析値( C 1,H1,02N3= 2 7 3
. 3 3 8として)計算値(%):C、65.91
H,7.01N115.37
実測値(%):C166.05 H,6.87N11
5.21
実施例 15
1−7エニル−3一N−N−ジメチルカルバモイルー5
−イソプロポキシピラゾール
ベンゼンー石油エーテル混液から再結晶。Colorless plate-like crystals, melting point 84-85° Co elemental analysis value (C 1, H 1, 02 N 3 = 2 7 3
.. 3 3 8) Calculated value (%): C, 65.91
H, 7.01N115.37 Actual value (%): C166.05 H, 6.87N11
5.21 Example 15 1-7enyl-3-N-N-dimethylcarbamoyl 5
- Recrystallization from isopropoxypyrazole benzene-petroleum ether mixture.
無色プリズム晶、熔融点111〜112℃。Colorless prismatic crystal, melting point 111-112°C.
元素分析値(C1,H1,02N3−273338とし
て)計算値(%):C、65.91H、7.01N11
5.37
実測値(%):C、66.10H、6.93N15.2
5
?施例 16
1−フエニル−3−N−N−ジメチルカルバモイルー5
−エトキシピラゾール
エーテルー石油エーテル混液から再結晶。Elemental analysis value (as C1, H1, 02N3-273338) Calculated value (%): C, 65.91H, 7.01N11
5.37 Actual value (%): C, 66.10H, 6.93N15.2
5? Example 16 1-phenyl-3-N-N-dimethylcarbamoyl 5
- Recrystallization from ethoxypyrazole ether-petroleum ether mixture.
無色針状晶、熔融点97〜98℃。Colorless needle crystals, melting point 97-98°C.
元素分析値(C14H102N3= 2 5 9.3
1 0として)計算値(%):C,64.85 H、
6.61N,16.20
実測値(%):C、64.98H、6.63N16.2
3
実施例 17
1−フエニル−3−N−N−ジメチルカルバモイルー5
−メトキシピラゾール
ベンゼンー石油エーテル混液から再結晶。Elemental analysis value (C14H102N3 = 2 5 9.3
10) Calculated value (%): C, 64.85 H,
6.61N, 16.20 Actual value (%): C, 64.98H, 6.63N16.2
3 Example 17 1-phenyl-3-N-N-dimethylcarbamoyl 5
- Recrystallized from methoxypyrazole benzene-petroleum ether mixture.
無色針状晶、熔融点86〜87℃。Colorless needle crystals, melting point 86-87°C.
元素分析値(C13H1502N3−245.283と
して)計算値(%):C、63.66H、6.16N1
7.13
実測値(%):C、63.92H、6.09N116.
96
実施例 18
■−(m−フロモフエニル)−3−N−N−ジメチルカ
ルバモイルー5−メトキシピラゾール含水メタノールか
ら再結晶。Elemental analysis value (as C13H1502N3-245.283) Calculated value (%): C, 63.66H, 6.16N1
7.13 Actual value (%): C, 63.92H, 6.09N116.
96 Example 18 ■-(m-Fromophenyl)-3-N-N-dimethylcarbamoyl-5-methoxypyrazole Recrystallized from aqueous methanol.
無色プリズム晶,熔融点88〜89℃。Colorless prismatic crystal, melting point 88-89°C.
元素分析値(C13H1402N3B r = 3 2
4. 1 8 4として)
計算値(%):C、48.17H、435N,12.9
6
実測値(%):C14834 H14.30N112
.82
実施例 19
1−(p−メトキシフエニル)−3一N−Nジメチルカ
ルバモイルー5−メトキシピラゾーノレ
エタノールー石油エーテル混液から再結晶。Elemental analysis value (C13H1402N3B r = 3 2
4. 1 8 4) Calculated value (%): C, 48.17H, 435N, 12.9
6 Actual value (%): C14834 H14.30N112
.. 82 Example 19 Recrystallization from 1-(p-methoxyphenyl)-3-N-N dimethylcarbamoyl-5-methoxypyrazonoleethanol-petroleum ether mixture.
無色プリズム晶、熔融点112〜113.5℃。Colorless prism crystal, melting point 112-113.5°C.
元素分析値(C14H1703N3−275.310と
して)計算値(%) :C, 6 1.08 H
6.22N,15.26
実測値(%)二C、61.21 H 6.08N1
15.10
実施例 20
?−(m−ニトロフエニル)−3−N−N−ジメチル力
ルバモイル−5−メトキシピラゾール含水アセトンから
再結晶。Elemental analysis value (as C14H1703N3-275.310) Calculated value (%): C, 6 1.08 H
6.22N, 15.26 Actual value (%) 2C, 61.21H 6.08N1
15.10 Example 20? -(m-Nitrophenyl)-3-N-N-dimethylrubamoyl-5-methoxypyrazole Recrystallized from aqueous acetone.
微黄色針状晶、熔融点146〜148℃。Pale yellow needle-like crystals, melting point 146-148°C.
元素分析値( C 13H140,N4= 2 9 0
. 2 s 1として)計算値(%):C,53.79
H、4.86N,19.30
実測値(%):C、53.67H、4.94N,19.
32
実施例 21
1−(p−メチルフエニル)−3−N−N−ジメチルカ
ルバモイルー5−n−ブトキシピラゾーノレ
エーテルー石油エーテル混液かも再結晶。Elemental analysis value (C13H140, N4=290
.. 2 s 1) Calculated value (%): C, 53.79
H, 4.86N, 19.30 Actual value (%): C, 53.67H, 4.94N, 19.
32 Example 21 Recrystallization of 1-(p-methylphenyl)-3-N-N-dimethylcarbamoyl-5-n-butoxypyrazone ether-petroleum ether mixture.
無色板状晶、熔融点99〜100℃。Colorless plate-like crystals, melting point 99-100°C.
元素分析値(C1H2302N3−30l392として
)計算値(%):C、67.75H、7.69N,13
.94
実測値(%):C、67.92H、7.60N,13.
78
実施例 22
1−(p−メチルフエニル)−3−N−N−ジメチルカ
ルバモイルー5−イソフロポキシピラゾール
エーテルー石油エーテル混液から再結晶。Elemental analysis value (as C1H2302N3-30l392) Calculated value (%): C, 67.75H, 7.69N, 13
.. 94 Actual value (%): C, 67.92H, 7.60N, 13.
78 Example 22 Recrystallization from a mixture of 1-(p-methylphenyl)-3-N-N-dimethylcarbamoyl-5-isofuropoxypyrazole ether-petroleum ether.
無色プリズム晶、熔融点90〜9FCo
元素分析値(C16H202N3=2 8 7.3 6
5として)計算値(%)二〇、66.88 H、7
.37N、1462
実測値(%)二C、67.04H、7. 2 0N11
4.60
実施例 23
1−(p−メチルフエニル)−3一N−N−ジメテルカ
ルバモイルー5−メトキシピラゾールエーテルー石油エ
ーテル混液から再結晶。Colorless prism crystal, melting point 90-9FCo Elemental analysis value (C16H202N3=2 8 7.3 6
5) Calculated value (%) 20, 66.88 H, 7
.. 37N, 1462 Actual value (%) 2C, 67.04H, 7. 2 0N11
4.60 Example 23 Recrystallization from a mixture of 1-(p-methylphenyl)-3-N-N-dimethylcarbamoyl-5-methoxypyrazole ether-petroleum ether.
無色柱状晶、熔融点120〜12FCo 元素分析値(C14H702N3−259。Colorless columnar crystals, melting point 120-12FCo Elemental analysis value (C14H702N3-259.
310として)計算値(%):C、64.85 H、
6.61N116.20
実測値(%)二〇、64.78 H、6.53N11
6.25
実施例 24
1−(o−クロロベンジル)−3−N−N−ジメチルカ
ルバモイルー5−ノトキシピラゾールエタノールー石油
エーテル混液かも再結晶。310) Calculated value (%): C, 64.85 H,
6.61N116.20 Actual value (%) 20, 64.78 H, 6.53N11
6.25 Example 24 Recrystallization of 1-(o-chlorobenzyl)-3-N-N-dimethylcarbamoyl-5-notoxypyrazole ethanol-petroleum ether mixture.
無色針状晶、熔融点135〜136℃。Colorless needle crystals, melting point 135-136°C.
元素分析値(C14}■1602N3Cl−29375
6として)
計算値(%):C、57.24H、5.49N,14.
30
実測値(%):C,57.42 H、542N1 1
4.08
実施例 25
1−(o−クロロフエニル)−3−N−N−ジメチルカ
ルバモイルー5−メトキシピラゾールメタノールー石油
エーテル混液から再結晶。Elemental analysis value (C14}■1602N3Cl-29375
6) Calculated value (%): C, 57.24H, 5.49N, 14.
30 Actual value (%): C, 57.42 H, 542N1 1
4.08 Example 25 1-(o-chlorophenyl)-3-N-N-dimethylcarbamoyl-5-methoxypyrazole Recrystallized from methanol-petroleum ether mixture.
無色板状晶、熔融点142〜144℃。Colorless plate-like crystals, melting point 142-144°C.
元素分析値(C13H1402N3Cl−279,72
8として)
計算値(%):C,55.82 H,5.04N15
.02
実測値(%):C、55.97H、5.07N,14.
84
実施例 26
■−(m−クロロフエニル)−3−N−N−ジメチルカ
ルバモイルー5−n−ブトキシピラゾーノレ
エーテルー石油エーテル混液から再結晶。Elemental analysis value (C13H1402N3Cl-279,72
8) Calculated value (%): C, 55.82 H, 5.04N15
.. 02 Actual value (%): C, 55.97H, 5.07N, 14.
84 Example 26 (1) Recrystallization from a mixture of -(m-chlorophenyl)-3-N-N-dimethylcarbamoyl-5-n-butoxypyrazone ether-petroleum ether.
無色板状晶、熔融点63〜64℃。Colorless plate-like crystals, melting point 63-64°C.
元素分析値(C16H2oO2N3C1−321.81
0として)
計算値(%):C、59、72 H、6.26N11
3.06
実測値(%):C、59.94H、6.24N112.
92
実施例 27
1−(3’・4′−ジクロロフエニル)−3−N・N−
ジメチルカルバモイルー5−メトキシピラゾール
含水メタノールから再結晶。Elemental analysis value (C16H2oO2N3C1-321.81
0) Calculated value (%): C, 59, 72 H, 6.26N11
3.06 Actual value (%): C, 59.94H, 6.24N112.
92 Example 27 1-(3'・4'-dichlorophenyl)-3-N・N-
Dimethylcarbamoyl-5-methoxypyrazole recrystallized from aqueous methanol.
無色針状晶、熔融点107〜108℃。Colorless needle crystals, melting point 107-108°C.
元素分析値(C13H1302N3C12−31417
3として)
計算値(%):C、49.70H、4.17N,13.
37
実測値(%)二C、49.63 H、422N,13
.21
実施例 28
?−(m−メチルフエニル) −3−N−N−ジメチル
カルバモイルー5−メトキシピラゾール含水アセトンか
ら再結晶。Elemental analysis value (C13H1302N3C12-31417
3) Calculated value (%): C, 49.70H, 4.17N, 13.
37 Actual value (%) 2C, 49.63H, 422N, 13
.. 21 Example 28? -(m-methylphenyl) -3-N-N-dimethylcarbamoyl-5-methoxypyrazole Recrystallized from aqueous acetone.
無色プリズム晶、熔融点80〜82℃。Colorless prismatic crystal, melting point 80-82°C.
元素分析値(C14H102N3=25 9.3 1
0として)計算値(%):C、
N、
実測値(%):C、
N、
64.85
16.20
64.93
16.13
H1
H1
6.61
6.55Elemental analysis value (C14H102N3=25 9.3 1
0) Calculated value (%): C, N, Actual value (%): C, N, 64.85 16.20 64.93 16.13 H1 H1 6.61 6.55
Claims (1)
または1をそれぞれ表わし、Xはn=oのとき、水素、
塩素、臭素、メチル基、メトキシ基、ニトロ基、トリフ
ルオロメチル基または3・4一ジクロロ基を、n=1の
とき、塩素をそれぞれ表わす)で示される3−N−メチ
ルカルバモイルピラゾール誘導体の金属塩にメチル化剤
を反応させることを特徴とする下記=般式 (式中R,n,Xは前記せると同一の意味を表わす)で
示されるピラゾール誘導体の製法。[Claims] 1 The following general formula (wherein R is an alkyl group containing C1 to C5, n is O
or 1 respectively, and when n=o, X is hydrogen,
3-N-methylcarbamoylpyrazole derivative metal represented by chlorine, bromine, methyl group, methoxy group, nitro group, trifluoromethyl group or 3,4-dichloro group (when n = 1, each represents chlorine) A method for producing a pyrazole derivative represented by the following general formula (wherein R, n, and X have the same meanings as shown above), which comprises reacting a salt with a methylating agent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7153474A JPS5849543B2 (en) | 1974-06-22 | 1974-06-22 | Pyrazole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7153474A JPS5849543B2 (en) | 1974-06-22 | 1974-06-22 | Pyrazole |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS511463A JPS511463A (en) | 1976-01-08 |
JPS5849543B2 true JPS5849543B2 (en) | 1983-11-05 |
Family
ID=13463485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7153474A Expired JPS5849543B2 (en) | 1974-06-22 | 1974-06-22 | Pyrazole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5849543B2 (en) |
-
1974
- 1974-06-22 JP JP7153474A patent/JPS5849543B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS511463A (en) | 1976-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5384330A (en) | Pharmaceutically active 1,2,4-triamino-benzene derivatives, processes for their preparation and pharmaceutical compositions containing them | |
Matassa et al. | Evolution of a series of peptidoleukotriene antagonists: synthesis and structure/activity relationships of 1, 3, 5-substituted indoles and indazoles | |
TW425382B (en) | Topically administrable compositions containing 3-benzoylphenylacetic acid derivatives for treatment of ophthalmic inflammatory disorders | |
JPH02131462A (en) | Acylanilide, preparation thereof and drug or animal drug composition having anti-androgen action | |
BRPI0207664B1 (en) | Omega-aminoalkylamides of (R) -2-aryl-propionic acids as inhibitors of polymorphonuclear and mononuclear cell chemotaxis, their preparation process, and pharmaceutical composition | |
NZ205554A (en) | Resolving racemic mixtures of beta-adrenergic aryl- or heteroaryl-oxypropanolamines and intermediate urea derivatives used therein | |
NO20051178L (en) | Process for the preparation of zolmitriptan compounds | |
Fiore et al. | N-triflyl-propiolamides: Preparation and transamidation reactions | |
JPH05310656A (en) | Preparation of amino compound | |
Garrido et al. | Synthesis of 2-alkylputrescines from 3-alkylpyrroles | |
JPS5849543B2 (en) | Pyrazole | |
ES2303275T3 (en) | SULFONAMID COMPOUNDS THAT ANTAGONIZE WITH THE TRPV1 VANILOID RECEIVER. | |
US2918401A (en) | Treatment of nematodes with quaternary ammonium compounds | |
HU180199B (en) | Process for producing 4,5-dihydro-4-oxo-furane-2-carboxylic acid derivatives of hypolipemic activity | |
Sawada et al. | 4-(1-Benzoylindol-3-yl) butyric acids and FK143: novel nonsteroidal inhibitors of steroid 5α-reductase (II) | |
NO882030L (en) | PROCEDURE FOR THE PREPARATION OF HYDRAZINE DERIVATIVES FOR USE AS ANTIHYPERTENSIVE AGENTS. | |
Nai et al. | Convenient Synthesis of Various Substituted Homotaurines from Alk‐2‐enamides | |
SU820658A3 (en) | Method of preparing 1-phenylethanolamine derivatives or their salts | |
DAHLBOM et al. | Some 3-Dialkylaminomethylindoles and 3, 3’-Diindolylmethanes | |
CA1181085A (en) | Fluorinated amino-butyric acid and diaminobutane derivatives | |
US3507919A (en) | Triphenylpropyl amines | |
FR2514353A2 (en) | Antidepressant 4-benzyloxy-piperidine derivs. - prepd. by react-ng piperidine deriv. with benzyl deriv. | |
FI77017B (en) | FOERFARANDE FOER FRAMSTAELLNING AV FENYLETANOLAMINER. | |
JPS5849545B2 (en) | Pyrazole Yudo Taino Seizouhou | |
FI59793C (en) | MELLAN PRODUCTS FOR FRAMSTATION PROCESSING OF HETEROCYCLIC BENZAMIDES WITH PHARMACOLOGICAL ACTIVITIES OR |