JPS5944382A - Preparation of phthalide isoquinoline - Google Patents

Preparation of phthalide isoquinoline

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Publication number
JPS5944382A
JPS5944382A JP15478882A JP15478882A JPS5944382A JP S5944382 A JPS5944382 A JP S5944382A JP 15478882 A JP15478882 A JP 15478882A JP 15478882 A JP15478882 A JP 15478882A JP S5944382 A JPS5944382 A JP S5944382A
Authority
JP
Japan
Prior art keywords
formula
methanol
isoquinoline
compound
general 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.)
Granted
Application number
JP15478882A
Other languages
Japanese (ja)
Other versions
JPS64398B2 (en
Inventor
Seiro Taniguchi
谷口 誠朗
Yoshimi Morita
良美 森田
Shuzo Hayakawa
早川 修三
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP15478882A priority Critical patent/JPS5944382A/en
Publication of JPS5944382A publication Critical patent/JPS5944382A/en
Publication of JPS64398B2 publication Critical patent/JPS64398B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE:To obtain the titled compound useful as a synthetic intermediate for an antiallergic agent tritoqualine, etc. in high yield, by reacting a nitrophthalide with an isoquinoline in methanol. CONSTITUTION:A nitrophthalide of formula I (R<1>, R<2> and R<3> are lower alkyl) is reacted with an isoquinoline of formula II (R<4>, R<5>, R<6> and R<7> are lower alkyl; R<5> and R<6> together may form a methylene group) in methanol at 50-80 deg.C for 8-36hr to give the aimed substance of formula III. The amount of the methanol to be used is 1.5-10 times, preferably 2.5-3 times, based on the compound of formula I , and the compound of formula II is used in an equimolar amount based on the compound of formula I . The aimed substance exhibits the 1RS- 3'RS form in the same configuration as that of the tritoqualine, and the method is industrially advantageous.

Description

【発明の詳細な説明】 本発明はフタライドイソキノリン:′11の製法に門し
、さらに詳しくは、抗アレルギー等の作用を有し医薬と
して有用なトリトクアリン′l!!、’J造のための中
間体、等として有用なフタラ・f1゛イソキノリン傾の
製法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing phthalide isoquinoline:'11, and more specifically, tritoqualin'1, which has antiallergic effects and is useful as a medicine. ! The present invention relates to a method for producing phtara-f1 isoquinoline, which is useful as an intermediate for the production of J, etc.

ぞ1−才、」二記−殿゛式(Ill)で示されるフタラ
イドインキノリン類に、一般式(I)で示さノLる−ト
ロタタライド類を、一般式(11)で示へ11.るイソ
キノリン類とエタノール中で反応式ぜて得る方法が知ら
れている(たとえ(汁、英国特許第g ? 3,93.
3−−け明細円)。しかしながら、との方法に員、必ず
しも満足すべき収率を達成できないという難点がある。
1-years-old, 11. Adding trotatalides of general formula (I) to phthalide inquinolines of formula (Ill) and trotatalides of general formula (11). A method is known in which a reaction formula of isoquinolines and isoquinolines obtained in ethanol are obtained (e.g. (soup), British Patent No. G? 3,93.
3--ke detail yen). However, this method has the disadvantage that a satisfactory yield cannot necessarily be achieved.

。 本発明者らは、収率向上のため種々検H;1シた結果、
エタノールに代乏−てメタノールを使用することにより
格段に収率が向」ニすることを見出し本発明に到達した
. The present inventors conducted various tests to improve the yield, and as a result,
The present invention was accomplished by discovering that the yield can be significantly improved by using methanol in place of ethanol.

す〃わぢ、本発明の勇:旨l[、一般式(1)(式中、
R1、R2及びR3);j (15級アルキル基を表わ
す) で示されるニトロフタライド類を、 一般式(n) (式中、R4、R5、R6及びR7i、j低級アルキル
基を表わ(−1R’、R〕、又はR5、R6でメチレン
基を形成してもよい) で示されるイソキノリン類とメタノール中で反応させて
、一般式(III) ONO。
Wow, the strength of the present invention: general formula (1) (in the formula,
R1, R2 and R3); -1R', R] or R5, R6 may form a methylene group) in methanol to form ONO of the general formula (III).

〔式中、RI、 R7は、一般式(1)及び(II)に
おけると同義である。〕 で示されるフタライドイソキノリン類を得ることを特徴
とするフタライドイソキノリン類の製法にある。
[Wherein, RI and R7 have the same meanings as in general formulas (1) and (II). ] A method for producing phthalide isoquinolines characterized by obtaining phthalide isoquinolines represented by the following.

以下、本発明の詳細な説明する。The present invention will be explained in detail below.

貢−ず、上記一般式(I鴬おいてR1−R7け、メチル
、エチル、n−プロピル、l5O−プロピル、n−ブチ
ル4、り・の炉素数/〜乙の低級アルキル基であり、こ
れらに[相5早なっていてもよい。才だ、一般式(旧に
赴いて、R6、R〕、又&−:l: R’、R6でメチ
レン基を形成してもよい(ず々わち、Ol’+6とOR
)、又C1,01)5とOR′″ のいす台がでメテレ
ンジオキシ基を形成してもよい)。
The lower alkyl group of the above general formula (R1-R7, methyl, ethyl, n-propyl, 15O-propyl, n-butyl, 4, ri), [Phase 5 may be earlier.] General formula (referring to the old, R6, R), and &-:l: R', R6 may form a methylene group (Zero) Chi, OR with Ol'+6
), or the chair base of C1,01)5 and OR''' may form a methylenedioxy group).

たとえ←1]、トリトクアリンの原:t:’lとしての
フタライド−fソ・■ノリン類f:得る場合にfrl、
コタルニン C1,(、、OOH が選ばれる。
For example ← 1], the origin of tritoqualin: t: phthalide-f as 'l,
Cotarnin C1,(,,OOOH) is selected.

本方法においては、一般式(1)で示されるニトロフタ
ライド類と一般式(11)で示されるイソキノリン類と
の反応乏−メタノール中で行なう。
In this method, a reaction between a nitrophthalide represented by the general formula (1) and an isoquinoline represented by the general formula (11) is carried out in low-methanol.

メタノールの量は、上記ニトロフタライド炉に対し、ハ
左〜10倍量(容hi)程度であり、2汀〜3倍量が最
も好ましい。−ヒ記インキノリン芝;ηのlRi用付は
、ニトロフタライド類に対し、通常等モル石IIfであ
る。
The amount of methanol is about 1 to 10 times the amount (volume hi) of the nitrophthalide furnace, and most preferably 2 to 3 times the amount (volume hi). - Inquinoline grass; η for lRi is usually equimolite IIf for nitrophthalides.

反応温度は50〜go’6程度がぜ用され、反応時間υ
゛、g〜3A時間8度である。
The reaction temperature is about 50~go'6, and the reaction time is υ.
゛, g~3A time 8 degrees.

反応終了後、精製は常法に従って行かわれる。After the reaction is completed, purification is carried out according to conventional methods.

たとえば、R1−R3がエチル基であるニトロフタライ
ド類とコタルニンとより上記方法によってイ(Iられる
フタライドイソキノリン類は、次いで錫等によって何元
してl・リトクアリンに7汚くことができる。
For example, phthalide isoquinolines, which are prepared by the above method from nitrophthalides in which R1 to R3 are ethyl groups and cotarnin, can then be converted to l-lithoqualin using tin or the like.

この場合、本発明方法によれば、得らねるフタライド7
ij IHJl、14 ;iX的に/R8−3’R8の
配置(すなわち、トリトクアリンの配[腎と同一)のみ
を有するので、工業的にきわめて有利である。
In this case, according to the method of the present invention, the unobtainable phthalide 7
ij IHJl, 14 ; Since it has only the /R8-3'R8 configuration (i.e., tritoqualin configuration [same as kidney) in terms of iX, it is extremely advantageous industrially.

以ド、実施例により本発明をさらに詳細にπ分。Hereinafter, the present invention will be explained in further detail with reference to Examples.

明する。I will clarify.

実施例/ ノーメチル−4,フーメチレンジオキシ−g−メトキシ
−/−〔り、左、1.−1−リエトキ/−7一ニトロ−
フタリジル−(3) ) −/、、7.、?、ゲーテト
ラヒド口イソギキノンの(、成 ダ、ダ、A−)リエトキ、/−ターニドローフクライト
、?り、、2 f (0,71モル)と1タルニンノ乙
、/?(6,71モル)にメチルアルコールg g m
eを加え、go’r2に加;’?!s 1.、、 i’
rオイルハス中、+?2: rF −F / n時間反
応させろ1.室ijL、!になった反応7Iηにメチル
アルコール/7ろm(,5メチルイソブチルケトンA 
A mlを前2−て4;il”l’ / Il−テ間し
た後結晶を口調し、少1,10メナJラルコールで洗浄
すると目的′]勿を、?7.θ2(収率乙q幅)イl÷
る。
Example/No-methyl-4, fumethylenedioxy-g-methoxy-/- [Left, 1. -1-retoki/-7-nitro-
Phthalidyl (3) ) -/, 7. ,? , goetetrahyde-isogiquinone (, narida, da, A-) rietoki, /-ternidlochkreit, ? ri,, 2 f (0.71 mol) and 1 taruninotsu, /? (6,71 mol) to methyl alcohol g g m
Add e and add go'r2;'? ! s1. ,,i'
r during oil lotus, +? 2: React for rF - F / n hours 1. Room ijL,! To the resulting reaction 7Iη, methyl alcohol/7filtration (,5 methyl isobutyl ketone A
After adding 2 to 4 ml of A ml, the crystals were washed with a small amount of 1,10 mL of J-ralcohol to give a yield of 7.θ2. Width) l÷
Ru.

m、p、  / II 9.5− /タ/、古℃口液と
洗浄液を減圧濃縮し、砦、つたオイル分K 更[コタル
ニン3..)、 ? ((7,0,2ス七ル)トメチル
アルコール/gm〆を加えて上記と同様に70時間反応
させ、全く回仔に後I11.理を行なって「1的物7.
り7(収率/4係)i、3:イIL、ろ。
m,p,/II 9.5-/ta/, the old °C oral fluid and washing liquid were concentrated under reduced pressure, and the ivy oil content was added to [kotarunin 3. .. ), ? (Add (7,0,2-sevenyl)tomethylalcohol/gm〆, react for 70 hours in the same manner as above, and after complete reconstitution, perform I11.
7 (yield/section 4) i, 3: i IL, ro.

イ(Iられる上記目的′1′ηI・:1.いずJlり3
、/R8−3’RB体であった。
I (I) The above purpose '1'η
, /R8-3'RB body.

比?1咬例/ q、r、t、 −)リエトキシー7−ニトローフクライ
ト、2.I Of (g、g乙ミリモル)、コタルニン
λ、7汐f(g、にグミリモル)と粉状の無水硫酸ナト
リウノ、コ、107に無水エタノール3omeを前身、
′ニ°!」、1)τ、 7jtr、 F、ノア時間接↑
′1゛還流させ反応を1またり。反応終了彷・反応液を
1′令j諺1jli’ j・(/晩装置[2栢出し/こ
、;清品ケロ過し乾ニド・−1′Iする。l−λt1h
−類の療1・′I体より寿るλ−メチルー!、7−メチ
レンジオキシ−g−メトキシ−/−〔ゲ、汐、4−トリ
エトキシ−7−ニトロ−フタリジル−(、’l) ] 
−/ 、2゜3、ゲーテトラヒドロイソキノリン償ハフ
A?(収率、?4係) 1する。Tn、p、7.2クー
/II/ Cな−1,−1上Fj[、F Hj+’4S
件体に:、F、 / RS−,7+18体と/R8−3
’SR体であり、その比率は約、2,5 ; 7であっ
た。
ratio? 1 bite/q, r, t, -) Retoxy 7-nitrofucrite, 2. I Of (g, g mmol), cotalnin λ, 7 f (g, g mmol), powdered anhydrous sodium sulfate, 107 and 3 ome of anhydrous ethanol as the predecessor,
'ni°! ”, 1) τ, 7jtr, F, Noah time tangent ↑
'1' Reflux and continue the reaction once. When the reaction is complete, remove the reaction solution from the apparatus at night and filter it through a clean filter and dry it.
-Type of treatment 1・'λ-methyl that lives longer than the I body! , 7-methylenedioxy-g-methoxy-/-[ge,shio,4-triethoxy-7-nitro-phthalidyl-(,'l)]
-/, 2゜3, Goetetrahydroisoquinoline compensation Hough A? (Yield, ?4 section) 1. Tn, p, 7.2 Ku/II/ Cna -1, -1 on Fj[, F Hj+'4S
In the case:,F, /RS-,7+18 bodies and /R8-3
'SR form, and the ratio was approximately 2,5;7.

参考例/ ト リ ト り ア リ シ/の合成 (/ R8−、?’、R8−) 、2−メナル−乙、ク
ーメチレンジオキシ−ざ−メトキシ−/−〔グ、に、A
−トリエトキシ−7−二ト「J−フタリジル−(,7)
]−/。
Reference example / Synthesis of tritrioxy(/R8-, ?', R8-), 2-menal-otsu, coumethylenedioxy-za-methoxy-/- [g, ni, A
-triethoxy-7-dito'J-phthalidyl-(,7)
]-/.

、2 、.3 、4’−デトラヒドロイソニ〜ノリン、
2/、、39(0,69モル)と他15日ハフ7(θ、
/ρ−モル)にアセトン/θOmeを前2、ジ1′冷下
::°7ゼ1゛シながら、g N  !gl”す旨(”
+ ’R’ / / 7 ml!を徐々11て/JJl
10カけ−177H下四−7)、−1r6’Nl°i 
+y、 ’L:ぐ;ンtN ノを八x m !/:l:
 、2θc介、!I12えな(ハ(壬に1で1F、’□
Ii l−1,’lを、l 、”4 j’jj+ −j
” 6゜銘j −’F )i”’rqiホ(%f)1り
除き幸r晶で1゛ノl′l/ll?1’ i’flノ(
「1スさせた後アセトンを減圧留去し、″・、1つだ水
溶液からジクロルエタン抽11ヒ;る。、ジクロ・トエ
タンへ′・マを合しこれに水冷下10係水師化ナトリウ
ム水熔7”t、 / !r 07を徐々に加え、イ1ら
ネに7アミン什釘物をフリー(でする、水層を分曹′ル
除〕(停ジクロルエタン層を・/係几DTΔ水(′r旨
イゝ・で−回θ14浄、更K 水7k :’l−(1堆
酸−ング不ンパ7ムー上で乾づ・′・(・□・する。7
容1(Ifを留去してノ浅った6晶?(メテルエチルク
トンから(−”J” a上品し、て、1fIjぞ11・
なトリトクアリン、J 、3.Of(Il”、4 、i
′、9ユチ)を:II−[る3、m、T−1,/ g 
o、′i′−/ g 、2C623
,2,. 3, 4'-detrahydroisoni-noline,
2/,, 39 (0.69 mol) and other 15 days Hough 7 (θ,
/ρ-mol) and acetone/θOme for 2 and 1' while cooling at 7°C and 1°g N! gl”suji(”
+ 'R' / / 7 ml! Gradually 11/JJl
10 pieces -177H lower 4-7), -1r6'Nl°i
+y, 'L: ugh;ntN ノを8xm! /:l:
, 2θc intervention,! I12 Ena(ha(壬に1 in 1F, '□
Ii l-1,'l, l,"4 j'jj+ -j
"6゜Inscriptionj -'F )i"'rqiho(%f) 1゛ノl'l/ll in all except 1? 1'i'flノ(
After one step, the acetone was distilled off under reduced pressure, and the aqueous solution was extracted with dichloroethane. , dichloro-toethane, 10% sodium chloride solution, 7"/!r07 was added gradually to this under water cooling, and 7 amines were added to the 1st column. The aqueous layer is removed by carbonation] (The dichloroethane layer is removed by DT∆ water (14 times). Dry on the paper 7. 7
Volume 1 (If is distilled off and shallow 6 crystals? (from mether ethyl lactone (-"J" a classy, te, 1fIj 11.
tritoqualin, J, 3. Of(Il”, 4, i
', 9 Yuchi): II-[ru3, m, T-1, / g
o,'i'-/g, 2C623

Claims (1)

【特許請求の範囲】[Claims] (1)一般式(1) (人中、Hl、R2及びR3はイ1(こj、lげルA・
ル基ろ°表わす) テ示すノするニトロフタ2イドEi’l’lを、−般式
 (1() %式% (式中、 n<、T(5,1111及びギ +ti1!
(:級アAノキル寿;を)★わし、R6、丁(7、又Q
1. R5、Roでメチレンツメ石を刀多成してもよい
) で示されるイソキノリン゛用とメタノール中で反応させ
−r、一般°式(lit) ONo。 〔式中、R′〜R7←1、一般5”、;(1)及び(旧
に2ける吉同義である、〕 で示されるフタライドイソキノリン領を得ること全特徴
とするフタライドイソキノリン類の製法。
(1) General formula (1) (In the philtrum, Hl, R2 and R3 are
The nitrophtide Ei'l'l which represents the te is represented by the general formula (1()% formula% (where n<, T(5,1111 and gi+ti1!).
(: Class A No Kill Kotobuki;) ★I, R6, Ding (7, also Q
1. R5, Ro may be used to synthesize methylene thumerite. ) React with the isoquinoline represented by -r in methanol, general formula (lit) ONo. [In the formula, R'~R7←1, general 5''; (1) and (formerly the same meaning as in 2) Manufacturing method.
JP15478882A 1982-09-06 1982-09-06 Preparation of phthalide isoquinoline Granted JPS5944382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15478882A JPS5944382A (en) 1982-09-06 1982-09-06 Preparation of phthalide isoquinoline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15478882A JPS5944382A (en) 1982-09-06 1982-09-06 Preparation of phthalide isoquinoline

Publications (2)

Publication Number Publication Date
JPS5944382A true JPS5944382A (en) 1984-03-12
JPS64398B2 JPS64398B2 (en) 1989-01-06

Family

ID=15591906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15478882A Granted JPS5944382A (en) 1982-09-06 1982-09-06 Preparation of phthalide isoquinoline

Country Status (1)

Country Link
JP (1) JPS5944382A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873935A (en) * 1959-08-05 1961-08-02 Maurice Jeanson Improvements in and relating to new isoquinoline phthalides and their process of preparation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873935A (en) * 1959-08-05 1961-08-02 Maurice Jeanson Improvements in and relating to new isoquinoline phthalides and their process of preparation

Also Published As

Publication number Publication date
JPS64398B2 (en) 1989-01-06

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