JPS6312475B2 - - Google Patents
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- Publication number
- JPS6312475B2 JPS6312475B2 JP16095082A JP16095082A JPS6312475B2 JP S6312475 B2 JPS6312475 B2 JP S6312475B2 JP 16095082 A JP16095082 A JP 16095082A JP 16095082 A JP16095082 A JP 16095082A JP S6312475 B2 JPS6312475 B2 JP S6312475B2
- Authority
- JP
- Japan
- Prior art keywords
- benzylidene
- deoxy
- compound
- chloroethyl
- chloroform
- 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
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- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
本発明は一般式〔〕
(但し、式中R1はH又はCH3を示し、R2は
The present invention is based on the general formula [] (However, in the formula, R 1 represents H or CH 3 , and R 2
【式】を示す)
で示される新規4,6―O―ベンジリデン―D―
アロース誘導体、即ち4,6―O―ベンジリデン
―3―〔3―(2―クロロエチル)―3―ニトロ
ソウレイド〕―3―デオキシ―D―アロピラノー
ス及びメチル4,6―O―ベンジリデン―3―
〔3―(2―クロロエチル)―3―ニトロソウレ
イド〕―3―デオキシ―α―D―アロピラノシド
ならびにこれらを有効成分として含有することを
特徴とする抗腫瘍剤に関するものである。
従来、3―〔3―(2―クロロエチル)―3―
ニトロソウレイド〕―3―デオキシ―D―アロー
ス(特開昭56―158797号公報)が各種実験腫瘍に
対して独特の巾広い抗腫瘍スペクトルを有するこ
とはすでに本発明者等により報告されている。
本発明は前記特開昭56―158797号のD―アロー
ス型化合物が4,6―位の水酸基をベンジリデン
基で保護することにより、化合物自体著しく安定
化され、且つ優れた抗腫瘍活性を示すことを見出
したことに基くものである。
本発明化合物〔〕は一般式〔〕の化合物
を、クロロホルム、アセトン等の有機溶媒中で三
二酸化窒素でニトロソ化することにより得られ
る。
(但し、式中R1はH又はCH3を示す。)
式〔〕の化合物のうちR1がHのものは、3
―〔3―(2―クロロエチル))ウレイド〕―3
―デオキシ―1,2;5,6―ジ―O―イソプロ
ピリデン―α―D―アロフラノース(特開昭56―
158797号公報)を85%含水トリフルオロ酢酸つい
でベンズアルデヒドと反応させることにより得ら
れる。又、R1がCH3のものは、メチル 3―ア
セトアミド―4,6―O―ベンジリデン―3―デ
オキシ―α―D―アロピラノシド(J.org
chem.,646頁,1954年)を水酸化ナトリウムと
反応させ、ついで、2―クロロエチルイソシアネ
ートと反応させることにより得られる。
以下本発明化合物〔〕の製造法を実施例によ
り詳細に説明する。
実施例 1
4,6―O―ベンジリデン―3―〔3―(2―
クロロエチル)ウレイド〕―3―デオキシ―α―
D―アロピラノース2.25gをアセトン50mlに溶解
し、氷冷下三二酸化窒素のエーテル溶液を反応液
が緑色になるまで加え、30分間撹拌した後、室温
で減圧濃縮し、濃縮残査をシリカゲルクロマトグ
ラフイー〔溶媒:クロロホルム―メタノール
(19:1,v/v)〕で精製して4,6―O―ベン
ジリデン―3―〔3―(2―クロロエチル)―3
―ニトロソウレイド〕―3―デオキシ―D―アロ
ピラノースを油状物質として1.5g得た。
収率;60%
〔α〕22 D;+22゜(C1.3,メタノール)
IR(KBr);1710(C=O),1490(N―O)cm-1
NMR(CDCl3―TMS)
δ3.47(t,2H,J=6Hz,CH2Cl)
δ6.07(d,1H,J=4Hz,H―1)
δ6.23(s,1H,CHPh)
δ7.47(m,5H,Ph)
元素分析値 C16H20N3O7Cl
計算値 C,47.82% H,5.00%
N,10.46%
実測値 C,47.53% H,5.14%
N,10.70%
実施例 2
メチル 3―アミノ―4,6―O―ベンジリデ
ン―3―デオキシ―α―D―アロピラノシド0.5
gをクロロホルム16mlとアセトン4mlの混合物に
溶解し、氷冷下2―クロロエチルイソシアネート
0.21gを加えた。室温で1時間撹拌したのち、再
び氷冷し、三二酸化窒素のエーテル溶液を反応液
が緑色になるまで加えた。減圧濃縮して得られた
油状物質を2―プロパノールを用い結晶化させ
て、メチル 4,6―O―ベンジリデン―3―
〔3―(2―クロロエチル)―3―ニトロソウレ
イド〕―3―デオキシ―α―D―アロピラノシド
を0.5g得た。
収率;67%
融点;141〜142(dec)
〔α〕22 D;+84゜(C0.7,クロロホルム)
IR(KBr);3480(OH),3370(NH)
1710(C=O),1490cm-1(N―
O)
NMR(CDCl3―TMS)
δ3.50(s,3H,OCH3)
δ4.83(d,1H,J=4Hz,H―1)
δ5.60(s,1H,CHPh)
δ7.37(m,5H,Ph)
δ8.10(d,1H,J=9Hz,NH)
元素分析値 C17H22N3O7Cl
計算値 C,49.10%, H,5.33%,
N,10.11%
実測値 C,49.02%, H,5.39%,
N,10.23%
次に本発明化合物の製造に使用する一般式
〔〕で示される原料化合物あるいは一般式〔〕
の化合物の原料化合物の製法を参考例により具体
的に説明する。
参考例 1
3―〔3―(2―クロロエチル)ウレイド〕―
3―デオキシ1,2;5,6―ジ―O―イソプロ
ピリデン―α―D―アロフラノース8.0gを85%
含水トリフルオロ酢酸50mlに溶解し、20分間室温
で放置した。減圧濃縮して得られた油状物質にエ
ーテル100mlを加え、激しく撹拌することにより、
吸湿性の非常に大きな粉末として、3―〔3―
(2―クロロエチル)ウレイド〕―3―デオキシ
―D―アロースを5.0g得た。この粉末に、ベン
ツアルデヒド20ml、及び無水塩化亜鉛5.0gを加
え4時間撹拌した。反応液を氷水50gに注ぎ、よ
く撹拌しながらn―ヘキサン50mlを加えた。n―
ヘキサンを傾瀉法で除き、ついでクロロホルム50
mlを加え抽出を行なつた。クロロホルム層を減圧
濃縮して得られた油状物質のシリカゲルクロマト
グラフイーをクロロホルム―メタノール(19:
1,v/v)を用いて行ない、4,6―O―ベン
ジリデン―3―〔3―(2―クロロエチル)ウレ
イド〕―3―デオキシ―D―アロピラノース3.0
g得た。
収率;46%
〔α〕22 D;+24゜(C1.0、メタノール)
IR(KBr);1690cm-1(C=O)
NMR(アセトン―d6―TMS)
δ5.95(d,1H,J=4Hz,H―1)
δ6.10(s,1H,CHPh)
δ7.30(m,5H,Ph)
元素分析値 C16H21N2O6Cl
計算値 C,51.54%; H,5.68%;
N,7.52%
実測値 C,51.38%; H,5.74%;
N,7.38%
参考例 2
メチル 3―アセトアミド―4,6―O―ベン
ジリデン―3―デオキシ―α―D―アロピラノシ
ド1.66gをジオキサン20mlおよび1N―水酸化ナ
トリウム水溶液15mlの混合物に加え、24時間加熱
還流を行なつた。反応液を減圧濃縮し、得られた
残渣へクロロホルム30mlと水30mlを加え、クロロ
ホルム層を分取した。クロロホルムを減圧濃縮し
て得られた油状物質をメタノールで結晶化させ
て、メチル 3―アミノ―4,6―O―ベンジリ
デン―3―デオキシ―α―D―アロピラノシドを
0.8g得た。
収率;56%
融点;188〜190℃(分解)
〔α〕22 D;+134゜(C1.0,クロロホルム)
IR(KBr);3370(OH),3050cm-1(NH)
NMR(CDCl3―TMS)
δ2.60(bs,2H,NH2)
δ3.47(s,3H,OCH3)
δ4.80(d,1H,J=4Hz,H―1)
δ5.70(s,1H,CHPh)
δ7.50(m,5H,Ph)
元素分析値 C14H19NO5
計算値 C,59.77%; H,6.81%;
N,4.98%
実測値 C,59.98%; H,6.75%;
N,4.78%
次に本発明化合物の抗腫瘍活性を試験例により
説明する。
なお、以下の説明に於いて「化合物A」及び
「化合物B」はそれぞれ下記の化合物を示す。
化合物A:4,6―O―ベンジリデン―3―
〔3―(2―クロロエチル)―3―ニトロソ
ウレイド〕―3―デオキシ―D―アロピラノ
ース
化合物B:メチル 4,6―O―ベンジリデン
―3―〔3―(2―クロロエチル)―3―ニ
トロソウレイド〕―3―デオキシ―α―D―
アロピラノシド
試験例 1
抗白血病効果試験
供試動物としてCDF1マウス,雄,6週令,体
重22±1gを使用した。腹腔内投与及び経口投与
試験で1群7匹を使用した。
ロイケミヤL―1210細胞1×105/マウスをマ
ウス腹腔内に移植し、その24時間後に化合物A又
はBを0.5%CMC水溶液に懸濁して、マウスに腹
腔内投与または経口投与した。
マウスの中間生存日数(1群7匹のときは、4
匹が死亡するまで要した日数以下MSDと略称す
る。)及び60日間生存した数を調べ薬剤を投与し
ない群を対照として延命率(以下ILSと略称す
る。)を算出した。
ILS(%)
=薬剤投与群のMSD―対照のMSD/対照のMSD×100
本試験結果は化合物Aの成績を第1表に、化合
物Bの成績を第2表に示す。[Formula]) Novel 4,6-O-benzylidene-D-
Allose derivatives, namely 4,6-O-benzylidene-3-[3-(2-chloroethyl)-3-nitrosouride]-3-deoxy-D-allopyranose and methyl 4,6-O-benzylidene-3-
The present invention relates to [3-(2-chloroethyl)-3-nitrosouride]-3-deoxy-α-D-allopyranoside and an antitumor agent containing these as active ingredients. Conventionally, 3-[3-(2-chloroethyl)-3-
The present inventors have already reported that nitrosouride]-3-deoxy-D-allose (Japanese Patent Application Laid-Open No. 158797/1983) has a unique broad antitumor spectrum against various experimental tumors. The present invention provides that the D-allose type compound of JP-A-56-158797 is significantly stabilized and exhibits excellent antitumor activity by protecting the 4,6-position hydroxyl groups with benzylidene groups. It is based on the discovery of The compound of the present invention [] can be obtained by nitrosating a compound of the general formula [] with nitrogen sesquioxide in an organic solvent such as chloroform or acetone. (However, in the formula, R 1 represents H or CH 3. ) Among the compounds of formula [], those where R 1 is H, 3
-[3-(2-chloroethyl))ureido]-3
-Deoxy-1,2;5,6-di-O-isopropylidene-α-D-allofuranose (Japanese Patent Application Laid-open No. 1986-
158797) with 85% aqueous trifluoroacetic acid and then benzaldehyde. In addition, when R 1 is CH 3 , methyl 3-acetamido-4,6-O-benzylidene-3-deoxy-α-D-allopyranoside (J.org
chem., p. 646, 1954) with sodium hydroxide and then with 2-chloroethyl isocyanate. The method for producing the compound of the present invention [] will be explained in detail with reference to Examples below. Example 1 4,6-O-benzylidene-3-[3-(2-
chloroethyl)ureido]-3-deoxy-α-
Dissolve 2.25 g of D-allopyranose in 50 ml of acetone, add an ether solution of nitrogen sesquioxide under ice-cooling until the reaction mixture turns green, stir for 30 minutes, concentrate under reduced pressure at room temperature, and chromatograph the concentrated residue on silica gel. Purification with Graphi [solvent: chloroform-methanol (19:1, v/v)] yields 4,6-O-benzylidene-3-[3-(2-chloroethyl)-3]
1.5 g of -nitrosourade]-3-deoxy-D-allopyranose was obtained as an oily substance. Yield: 60% [α] 22 D : +22° (C1.3, methanol) IR (KBr): 1710 (C=O), 1490 (N-O) cm -1 NMR (CDCl 3 -TMS) δ3. 47 (t, 2H, J=6Hz, CH 2 Cl) δ6.07 (d, 1H, J=4Hz, H-1) δ6.23 (s, 1H, CHPh) δ7.47 (m, 5H, Ph) Elemental analysis value C 16 H 20 N 3 O 7 Cl Calculated value C, 47.82% H, 5.00% N, 10.46% Actual value C, 47.53% H, 5.14% N, 10.70% Example 2 Methyl 3-amino-4, 6-O-benzylidene-3-deoxy-α-D-allopyranoside 0.5
Dissolve g in a mixture of 16 ml of chloroform and 4 ml of acetone, and add 2-chloroethyl isocyanate under ice cooling.
Added 0.21g. After stirring at room temperature for 1 hour, the mixture was cooled on ice again, and an ether solution of nitrogen sesquioxide was added until the reaction mixture turned green. The oily substance obtained by concentration under reduced pressure was crystallized using 2-propanol to obtain methyl 4,6-O-benzylidene-3-
0.5 g of [3-(2-chloroethyl)-3-nitrosouride]-3-deoxy-α-D-allopyranoside was obtained. Yield: 67% Melting point: 141-142 (dec) [α] 22 D ; +84° (C0.7, chloroform) IR (KBr); 3480 (OH), 3370 (NH) 1710 (C=O), 1490 cm -1 (N-
O) NMR (CDCl 3 - TMS) δ3.50 (s, 3H, OCH 3 ) δ4.83 (d, 1H, J=4Hz, H-1) δ5.60 (s, 1H, CHPh) δ7.37 ( m, 5H, Ph) δ8.10 (d, 1H, J=9Hz, NH) Elemental analysis value C 17 H 22 N 3 O 7 Cl Calculated value C, 49.10%, H, 5.33%, N, 10.11% Actual value C, 49.02%, H, 5.39%, N, 10.23% Next, the raw material compound or general formula shown by the general formula [] used in the production of the compound of the present invention []
The method for producing the raw material compound of the compound will be specifically explained using reference examples. Reference example 1 3-[3-(2-chloroethyl)ureido]-
3-Deoxy1,2;5,6-di-O-isopropylidene-α-D-allofuranose 8.0g at 85%
It was dissolved in 50 ml of aqueous trifluoroacetic acid and left at room temperature for 20 minutes. By adding 100 ml of ether to the oily substance obtained by concentrating under reduced pressure and stirring vigorously,
As a highly hygroscopic powder, 3-[3-
5.0 g of (2-chloroethyl)ureido]-3-deoxy-D-allose was obtained. 20 ml of benzaldehyde and 5.0 g of anhydrous zinc chloride were added to this powder and stirred for 4 hours. The reaction solution was poured into 50 g of ice water, and 50 ml of n-hexane was added while stirring well. n-
Remove hexane by decantation, then chloroform 50%
ml was added to perform extraction. The chloroform layer was concentrated under reduced pressure and the oily substance obtained was chromatographed on silica gel using chloroform-methanol (19:
1, v/v) and 4,6-O-benzylidene-3-[3-(2-chloroethyl)ureido]-3-deoxy-D-allopyranose 3.0
I got g. Yield; 46% [α] 22 D ; +24° (C1.0, methanol) IR (KBr); 1690 cm -1 (C=O) NMR (acetone-d 6 -TMS) δ5.95 (d, 1H, J=4Hz, H-1) δ6.10 (s, 1H, CHPh) δ7.30 (m, 5H, Ph) Elemental analysis value C 16 H 21 N 2 O 6 Cl Calculated value C, 51.54%; H, 5.68 %; N, 7.52% Actual value C, 51.38%; H, 5.74%; N, 7.38% Reference example 2 Methyl 3-acetamido-4,6-O-benzylidene-3-deoxy-α-D-allopyranoside 1.66 g It was added to a mixture of 20 ml of dioxane and 15 ml of 1N aqueous sodium hydroxide solution, and heated under reflux for 24 hours. The reaction solution was concentrated under reduced pressure, 30 ml of chloroform and 30 ml of water were added to the resulting residue, and the chloroform layer was separated. The oil obtained by concentrating chloroform under reduced pressure was crystallized with methanol to obtain methyl 3-amino-4,6-O-benzylidene-3-deoxy-α-D-allopyranoside.
Obtained 0.8g. Yield: 56% Melting point: 188-190℃ (decomposition) [α] 22 D ; +134゜ (C1.0, chloroform) IR (KBr); 3370 (OH), 3050 cm -1 (NH) NMR (CDCl 3 - TMS) δ2.60 (bs, 2H, NH 2 ) δ3.47 (s, 3H, OCH 3 ) δ4.80 (d, 1H, J=4Hz, H-1) δ5.70 (s, 1H, CHPh) δ7.50 (m, 5H, Ph) Elemental analysis value C 14 H 19 NO 5 Calculated value C, 59.77%; H, 6.81%; N, 4.98% Actual value C, 59.98%; H, 6.75%; N, 4.78 % Next, the antitumor activity of the compounds of the present invention will be explained using test examples. In addition, in the following explanation, "compound A" and "compound B" respectively indicate the following compounds. Compound A: 4,6-O-benzylidene-3-
[3-(2-chloroethyl)-3-nitrosouride]-3-deoxy-D-allopyranose Compound B: Methyl 4,6-O-benzylidene-3-[3-(2-chloroethyl)-3-nitrosouride ]-3-deoxy-α-D-
Allopyranoside Test Example 1 Antileukemia Effect Test CDF 1 mice, male, 6 weeks old, weight 22±1 g, were used as test animals. Seven animals per group were used in intraperitoneal administration and oral administration tests. Leukemia L-1210 cells (1×10 5 /mouse) were intraperitoneally transplanted into mice, and 24 hours later, Compound A or B was suspended in a 0.5% CMC aqueous solution and administered intraperitoneally or orally to the mice. Median survival days of mice (when there are 7 mice in a group, 4
The number of days it takes for an animal to die is abbreviated as MSD. ) and the number of survivors for 60 days, and the survival rate (hereinafter abbreviated as ILS) was calculated using the group to which no drug was administered as a control. ILS (%) = MSD of drug administration group - MSD of control / MSD of control x 100 The results of this test are shown in Table 1 for Compound A and Table 2 for Compound B.
【表】【table】
【表】【table】
【表】
以上の試験結果から明らかなように、本発明に
係る化合物AおよびBは白血病に対して強力な抗
白血病作用を発揮し、これら腫瘍に羅患した温血
動物の生存期間を延長し、腫瘍細胞の増殖を抑制
した。
なお、本発明化合物AおよびBのマウス(雄,
体重20〜22.5g)に対する急性毒性LD50は第3表
に示す通りである。[Table] As is clear from the above test results, compounds A and B according to the present invention exert a strong anti-leukemic effect against leukemia, and extend the survival period of warm-blooded animals affected by these tumors. , inhibited tumor cell proliferation. In addition, mice (male,
The acute toxicity LD 50 for body weight (20-22.5 g) is shown in Table 3.
【表】
また、本発明化合物は経時的に著しく安定であ
り、乾燥状態で、30℃数ケ月間保在した場合化合
物A,B共に殆ど分解せず、医薬品として製剤化
が容易である。[Table] Furthermore, the compounds of the present invention are extremely stable over time, and when kept in a dry state at 30°C for several months, both Compounds A and B hardly decompose, making it easy to formulate them as pharmaceuticals.
Claims (1)
【式】を示す) で示される4,6―O―ベンジリデン―D―アロ
ース誘導体。 2 一般式〔〕 (但し、式中R1はH又はCH3を示し、R2は
【式】を示す) で示される4,6―O―ベンジリデン―D―アロ
ース誘導体を有効成分として含有することを特徴
とする抗腫瘍剤。[Claims] 1. General formula [] (However, in the formula, R 1 represents H or CH 3 , and R 2 represents [Formula]) A 4,6-O-benzylidene-D-allose derivative represented by the following. 2 General formula [] (However, in the formula, R 1 represents H or CH 3 and R 2 represents [Formula]) It is characterized by containing a 4,6-O-benzylidene-D-allose derivative represented by the following as an active ingredient. Antitumor agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16095082A JPS5951297A (en) | 1982-09-17 | 1982-09-17 | Novel 4,6-o-benzylidene-d-allose derivative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16095082A JPS5951297A (en) | 1982-09-17 | 1982-09-17 | Novel 4,6-o-benzylidene-d-allose derivative |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5951297A JPS5951297A (en) | 1984-03-24 |
| JPS6312475B2 true JPS6312475B2 (en) | 1988-03-18 |
Family
ID=15725701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16095082A Granted JPS5951297A (en) | 1982-09-17 | 1982-09-17 | Novel 4,6-o-benzylidene-d-allose derivative |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951297A (en) |
-
1982
- 1982-09-17 JP JP16095082A patent/JPS5951297A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5951297A (en) | 1984-03-24 |
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