抗血吸虫病药物的研究 α,ω-双-(对氨基苯氧(硫)基)-烷类及其多羟基衍生物的合成

1.对乙酰氨基苯酚与1,7-二溴代庚烷,在乙醇钠液中缩合,得1,7-双(对乙酰氨基苯氧基)-庚烷,经稀盐酸水解制得1,7-双(对氨基苯氧基)-庚烷二盐酸盐.2.对乙酰氨基硫酚在硷醇中分别与1,3-二溴代丙烷,1,6-二溴代己烷和1,7-二溴代庚烷缩合,水解就可以分别得到相应的α,ω-双(对氨基苯硫基)-烷二盐酸盐.3.1-氯代甘油及1,3-二溴代甘油与对乙酰氨基苯酚或硫酚缩合,再行水解后,分别获得甘油的1-(对氨基苯基)及1,3-双(对氨基苯基)-醚或其硫代醚.4.1,6-二氯代-2,3-4,5-二亚甲基-D-甘露醇与对乙酰氨基苯酚钠盐,在封闭管中长期加热,可获得2,3-4,5-二亚甲基-D-甘露醇-1,6-双(对乙酰氨基苯)-醚.5.将 D-甘露醇做成1,2-3,4-5,6-三异丙基-D-甘露醇,经部分水解成3,4-异丙基化合物,再制成1,6-双(对甲苯磺酰基)-2,5-二乙酰基-3,4-异丙基-D-甘露醇,在乙醇钠溶液中,分别与对乙酰氨基苯酚或硫酚缩合,再经水解,即分别得到 D-甘露醇-1,6-双(对氨基苯基)-醚或 D-甘露醇-1,6-双(对氨基苯基)硫代醚的双盐酸盐.6.对硝基苯酚与1,4-二溴代-2-丁烯缩合,生成1,4-双(对硝基苯氧基)-2-丁烯,于双键上进行双羟基化,并将硝基还原,得1,4-双(对氨基苯氧基)-2,3-threo-双羟基丁烷二盐酸盐.7.本文报导中的11个化合物,其中除Ⅰ、Ⅴ外,均为未知化合物,用作动物试验,初步结果表明,这些多羟基的氨苯氧(或硫)烷类化合物,对日本住血吸虫病都无效.     

抗血吸虫病药物的研究 α,ω-双-(对氨基苯氧(硫)基)-烷类及其多羟基衍生物的合成

1.对乙酰氨基苯酚与1,7-二溴代庚烷,在乙醇钠液中缩合,得1,7-双(对乙酰氨基苯氧基)-庚烷,经稀盐酸水解制得1,7-双(对氨基苯氧基)-庚烷二盐酸盐.2.对乙酰氨基硫酚在硷醇中分别与1,3-二溴代丙烷,1,6-二溴代己烷和1,7-二溴代庚烷缩合,水解就可以分别得到相应的α,ω-双(对氨基苯硫基)-烷二盐酸盐.3.1-氯代甘油及1,3-二溴代甘油与对乙酰氨基苯酚或硫酚缩合,再行水解后,分别获得甘油的1-(对氨基苯基)及1,3-双(对氨基苯基)-醚或其硫代醚.4.1,6-二氯代-2,3-4,5-二亚甲基-D-甘露醇与对乙酰氨基苯酚钠盐,在封闭管中长期加热,可获得2,3-4,5-二亚甲基-D-甘露醇-1,6-双(对乙酰氨基苯)-醚.5.将D-甘露醇做成1,2-3,4-5,6-三异丙基-D-甘露醇,经部分水解成3,4-异丙基化合物,再制成1,6-双(对甲苯磺酰基)-2,5-二乙酰基-3,4-异丙基-D-甘露醇,在乙醇钠溶液中,分别与对乙酰氨基苯酚或硫酚缩合,再经水解,即分别得到D-甘露醇-1,6-双(对氨基苯基)-醚或D-甘露醇-1,6-双(对氨基苯基)硫代醚的双盐酸盐.6.对硝基苯酚与1,4-二溴代-2-丁烯缩合,生成1,4-双(对硝基苯氧基)-2-丁烯,于双键上进行双羟基化,并将硝基还原,得1,4-双(对氨基苯氧基)-2,3-threo-双羟基丁烷二盐酸盐.7.本文报导中的11个化合物,其中除Ⅰ、Ⅴ外,均为未知化合物,用作动物试验,初步结果表明,这些多羟基的氨苯氧(或硫)烷类化合物,对日本住血吸虫病都无效.     

α,ω-双-[对-氨基苯氧基]-戊烷及-庚烷-N,N′-双取代衍生物的合成

α,ω-双-[对-氨基苯氧基]-烷类化合物对感染日本血吸虫病的实驗动物具有显著的疗效,惟毒性較高,我們合成了α,ω-双-[对-氨基苯氧基]-戊烷及-庚烷的N,N′-双取代衍生物10种,希望疗效增加而毒性减低。 n=5或7; R=H,R′=CH_2SO_3Na R=H,R′=CH_2CN R=H,R′=COOC_2H_5 R,R′=-(CH_2)_5- R,R′=-(CH_2)_2O(CH_2)_2- 由相应的α,ω-双-[对-氨基苯氧基]-烷类和羟甲磺酸鈉作用生成α,ω-双-[对-氨基苯氧基]-戊烷(及-庚烷)-N,N′-双甲磺酸鈉。它和氰化鉀反应,即得相应的N,N′-双乙臍衍生物。α,ω-双-[对-氨基苯氧基]-戊烷(及-庚烷)-N,N′-双甲酸乙酯則由相应的α,ω-双-[对-氨基苯氧基]-烷类和氯代甲酸乙酯作用而得。α,ω-双-[对-六氫呲啶基苯氧基]-戊烷(及-庚烷)和α,ω-双-[对-N-氧氮六圜基苯氧基]-戊烷(及-庚烷)則分别由相当的α,ω-双-[对-氨基苯氧基]-烷类和二溴戊烷或β,β′-二溴乙醚作用生成。其中α,ω-双-[对-N-六氫吡啶基苯氧基]-戊烷井另由N-对羟苯基六氫吡啶和二溴戊烷縮合生成。     

α,ω-双-[对-氨基苯氧基]-戊烷及-庚烷-N,N′-双取代衍生物的合成

α,ω-双-[对-氨基苯氧基]-烷类化合物对感染日本血吸虫病的实驗动物具有显著的疗效,惟毒性較高,我們合成了α,ω-双-[对-氨基苯氧基]-戊烷及-庚烷的N,N′-双取代衍生物10种,希望疗效增加而毒性减低。n=5或7; R=H,R′=CH₂SO₃Na R=H,R′=CH₂CN R=H,R′=COOC₂H₅ R,R′=-(CH₂)₅- R,R′=-(CH₂)₂O(CH₂)₂- 由相应的α,ω-双-[对-氨基苯氧基]-烷类和羟甲磺酸鈉作用生成α,ω-双-[对-氨基苯氧基]-戊烷(及-庚烷)-N,N′-双甲磺酸鈉。它和氰化鉀反应,即得相应的N,N′-双乙臍衍生物。α,ω-双-[对-氨基苯氧基]-戊烷(及-庚烷)-N,N′-双甲酸乙酯則由相应的α,ω-双-[对-氨基苯氧基]-烷类和氯代甲酸乙酯作用而得。α,ω-双-[对-六氫呲啶基苯氧基]-戊烷(及-庚烷)和α,ω-双-[对-N-氧氮六圜基苯氧基]-戊烷(及-庚烷)則分别由相当的α,ω-双-[对-氨基苯氧基]-烷类和二溴戊烷或β,β′-二溴乙醚作用生成。其中α,ω-双-[对-N-六氫吡啶基苯氧基]-戊烷井另由N-对羟苯基六氫吡啶和二溴戊烷縮合生成。     

α,ω-双-[对-甲氨基苯氧基]-戊烷及庚烷-N,N′-双取代衍生物的合成

α,ω-双-[对-氨基苯氧基]-烷类对感染日本血吸虫病的实驗动物具有显著疗效,惟毒性较大.本文叙述了α,ω-双-[对-甲氨基苯氧基]-戊烷及-庚烷-N,N′双取代衍生物的合成,希望这些衍生物的毒性减低,而疗效增大.n=5或7.R=-CH_2SO·ONa,-CH_2SO_2·ONa,-CH_2COONa, -CH_2CONH_2,-CH_2CN,-CONH_2,-COCH_3,-CH_2CONH_2,-COOC_2H_5.N,N′-双甲亚磺酸鈉及N,N′-双甲磺酸鈉衍生物系以α,ω-双-[对-甲氨基苯氧基]-戊烷Ⅰ及庚烷Ⅱ分別与烴甲亚磺酸鈉及烴甲磺酸鈉在碱性甲醇中作用生成.N,N′-双甲磺酸鈉衍生物与氰化鉀反应得N,N′-双乙腈衍生物,再行水解則得N,N′-双乙酸鈉衍生物.由对-N-氨基碳酰甲基-N-甲氨基苯酚、对-N-氨基碳酰-N-甲氨基苯酚,以及对-N-β-羥乙基-N-甲氨基苯酚分別与α,ω-二溴烷类縮合,得N,N′-双乙酰胺、N,N′-双碳酰胺、以及N,N′-双-β-羥乙基衍生物.N,N′-双碳酰胺亦由Ⅰ及Ⅱ直接与氰酸鉀反应制得。N,N′-双甲酸乙酯衍生物系以Ⅱ与氯代甲酸乙酯作用合成,而N,N′-双乙酰衍生物則按常法制取之。     

α,ω-双-[对-甲氨基苯氧基]-戊烷及庚烷-N,N′-双取代衍生物的合成

α,ω-双-[对-氨基苯氧基]-烷类对感染日本血吸虫病的实驗动物具有显著疗效,惟毒性较大.本文叙述了α,ω-双-[对-甲氨基苯氧基]-戊烷及-庚烷-N,N′双取代衍生物的合成,希望这些衍生物的毒性减低,而疗效增大.n=5或7.R=-CH₂SO·ONa,-CH₂SO₂·ONa,-CH₂COONa, -CH₂CONH₂,-CH₂CN,-CONH₂,-COCH₃,-CH₂CONH₂,-COOC₂H₅.N,N′-双甲亚磺酸鈉及N,N′-双甲磺酸鈉衍生物系以α,ω-双-[对-甲氨基苯氧基]-戊烷Ⅰ及庚烷Ⅱ分別与烴甲亚磺酸鈉及烴甲磺酸鈉在碱性甲醇中作用生成.N,N′-双甲磺酸鈉衍生物与氰化鉀反应得N,N′-双乙腈衍生物,再行水解則得N,N′-双乙酸鈉衍生物.由对-N-氨基碳酰甲基-N-甲氨基苯酚、对-N-氨基碳酰-N-甲氨基苯酚,以及对-N-β-羥乙基-N-甲氨基苯酚分別与α,ω-二溴烷类縮合,得N,N′-双乙酰胺、N,N′-双碳酰胺、以及N,N′-双-β-羥乙基衍生物.N,N′-双碳酰胺亦由Ⅰ及Ⅱ直接与氰酸鉀反应制得。N,N′-双甲酸乙酯衍生物系以Ⅱ与氯代甲酸乙酯作用合成,而N,N′-双乙酰衍生物則按常法制取之。     

抗心律失常药物的研究——2-[(烷胺基)甲基]-和2,6-双[(烷胺基)甲基]-4-(取代胺基)苯酚类化合物的合成

已知某些带2-[(烷胺基)甲基]-4-氨基苯酚或2,6-双[(烷胺基)甲基]-4-氨基苯酚基团的抗疟药具有抗心律失常作用。为了寻找抗心律失常新药,我们合成了一系列取代的4-氨基苯酚类化合物,药理筛选结果表明其中约半数有对抗乌头硷引起的大鼠心律失常的活性。     

抗心律失常药多非利特(Dofetilide)

1商品名 Tikosyn 2化学名 N-[4-[2-[甲基[2-[4-[(甲烷磺酰)氨基]苯氧基]乙基]氨基]乙基]苯基]甲烷磺酰胺     

抗血吸虫病药物的研究 取代(4-氨基-1-萘偶氮)苯和取代[4-(二乙氨基乙基氨基)-1-萘偶氮]苯类的合成

应用Elslager等法合成了35个取代(4-氨基-1-萘偶氮)苯和取代[4-(二乙氨基乙基氨基)-1-萘偶氮]苯类,同时又合成了5-(4-氨基-1-萘偶氮)尿嘧啶和5-[4-(二乙氨基乙基氨基)-1-萘偶氮]尿嘧啶。经动物筛选证明,有13个化合物对日本血吸虫病有预防和治疗作用,其中以2-氯-4-硝基[4-(二乙氨基乙基氨基)-1-萘偶氮]苯(化合物26)和5-[4-(二乙氨基乙基氨基)-1-萘偶氮]尿嘧啶(I_b)的治疗作用最显著,灭虫率达70％左右。     

2-二烷氨甲基-4-杂环氨基-5,6,7,8-四氢萘酚衍生物的合成及抗疟活性

由于世界上许多地区的恶性疟原虫对氯喹产生了抗药性,迫切需要寻找新结构类型的高效、速效、无抗性的新药。1972年Nabih~[1]报道了对鼠疟(P.berghei)具有治疗及预防作用的2-二乙氨甲基-4-(7-氯-4-喹啉氨基)-5,6,7,8-四氢萘酚(Ⅰ)。1976年我们合成了Ⅰ,     

Cytotoxic activities of diarylheptanoids from Alnus japonica

The diarylheptanoids (1–10) 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-O-β-D-glucopyranosyl(1→3)-β-D-xylopyranoside (1), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-O-β-D-apiofuranosyl(1→6)-β-D-glucopyranoside (2), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-β-D-glucopyranoside (3), 1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane (4), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-β-D-glucopyranoside (5), oregonin (6), hirsutanonol (7), hirsutenone (8), 1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane-3-O-β-D-xylopyranoside (9), and platyphylloside (10), isolated from the bark of Alnus japonica, were analyzed for their cytotoxic activities on various human and mouse cancer cell lines. The cytotoxic activities of these ten compounds were evaluated against murine B16 melanoma, human SNU-1 gastric cancer, human SNU-354 hepatoma cancer and human SNU-C4 colorectal cell lines. The diarylheptanoids showed potent cytotoxic activities against murine B16 melanoma cells and human SNU-C1 gastric cancer cell when the cell viability was analyzed by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide) assay.     

Diarylheptanoids from the leaves ofAlnus hirsuta Turcz

Diarylheptanoids, (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane-3-one (1, hirsutanonol), (5S)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-beta-D-xylopyranosi de (2, oregonin), (5R)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-beta-D-xylopyranoside (3), and (5R)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-beta-D-glucopyranoside (4) were isolated from the leaves of Alnus hirsuta Turcz. The structures of these compounds were identified based on the spectral and physicochemical data.     

Syntheses in a series of purine derivatives

From 2-chloro-1,7-dimethylhypoxanthine are synthesized 1,7-dimethylhypoxanthine-2-acetic acid, certain of its derivatives, and also a series of derivatives of 1,7-dimethylhypoxanthine substituted at C₂, among them 2-diethylaminomethyl-1,7-dimethylhypoxanthine and-(1,7-dimethylhypoxanthine-2)-alanine.Translated from Khimiko-Farmatsevticheskii Zhurnal, No. 3, pp. 37–40, March, 1967.     

Synthesis andin vitro cytotoxicity of 3- or 4-dialkylaminomethyl-1-azaanthraquinones

Six 3-dialkylaminomethyl-1-azaanthraquinones and five 4-dialkylaminomethyl-1-azaanthraquinones were synthesized and evaluatedin vitro cytotoxicity against four human cancer cell lines. The compounds retained much of their cytotoxic activity against the multi-drug-resistant cell line (KB-V-1) as shown by resistance index.     

Synthetic derivatives of curcumin and their activity against Leishmania amazonensis

In a previous work, the in vitro and in vivo activity of a series of diarylheptanoid derivatives against Leishmania amazonensis has been described. Based on the promising results, ten new compounds belonging to the same chemical class were synthesized and have been investigated in relation to their leishmanicidal activity. The compounds were obtained through several chemical modifications on the basic structure of curcumin (1,7-bis-(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione) in an attempt to increase its effectiveness and decrease the potential toxic effects. The drugs were assayed in vitro against L. amazonensis promastigotes and using pentamidine isethionate as reference drug. The results showed that the most effective compound is 1,7-bis-(4-propargyl-3-methoxyphenyl)-1,6-heptadiene-3,5-dione, which is about ten times more efficient than the original curcumin. Nevertheless, these results did not allow us to make any correlation between the leishmanicidal activity and the chemical structure of the compounds.     

Inhibition of cyclooxygenase-2 expression by diarylheptanoids from the bark of Alnus hirsuta var. sibirica

Two known diarylheptanoids, oregonin (1), (5S)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-beta-D-xylopyranosi de and hirsutanonol (2), (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane-3-one isolated from the bark of Alnus hirsuta var. sibirica, showed significant inhibitory effects on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced cyclooxygenase-2 (COX-2) expression in immortalized human breast epithelial MCF10A cells.     

Synthesis and antitumor screening of new 1,7-diphenyl-3-(1,3-disubstituted-1H-pyrazole-4-carbonyl)-[1,2,4]triazolo[4,3-<Emphasis Type="Italic">a</Emphasis>]pyrimidin-5(1H)-ones

A new series of 3-(1,3-disubstituted-1H-pyrazole-4-carbonyl)-1,7-diphenyl-[1,2,4]triazolo[4,3-a]pyrimidin-5(1H)-ones 4 was prepared by reaction of the enaminone 2 with hydrazonoyl halides 3. The preliminary screening for antitumor activity of the synthesized compounds was carried out against Ehrlich Ascites Carcinoma tumor cells. The results revealed that the studied compounds 4 have low or no antitumor activity towards EAC tumor cells.     

Drug-metabolizing enzyme induction by 2,2′-dipyridyl, 1,7-phenanthroline, 7,8-benzoquinoline and oltipraz in mouse

1. Changes in the major hepatic drug-metabolizing enzymes by compounds identified as atypical inducers (multienzyme response but devoid of cytochrome P450-inducing ability) in rat were investigated in mouse. Animals were treated with 1,7-phenanthroline, 2,2′-dipyridyl, 7,8-benzoquinoline and oltipraz at 75 and 150?mg/kg daily for 3 days. 2. UDP-glucuronosyltransferase(UGT) activities showed only limited changes, UGT activity towards 4-nitrophenol and 1-naphthol was induced by the 75?mg/kg dose of 2,2′-dipyridyl and UGT activity towards morphine was induced by 150?mg/kg doses of 7,8-benzoquinoline and oltipraz. UGT activity towards oestrone was not induced by any treatment regimen and showed a decrease following treatment with the lower dose of 7,8-benzoquinoline. 3. In contrast with the limited effect on UGT activities, glutathione S-transferase and NAD(P)H:quinone oxidoreductase activities were significantly elevated by most compounds. Glutathione S-transferase activity was significantly elevated by the 150?mg/kg dose of 1,7-phenanthroline (73%), 2,2′-dipyridyl (52%) and oltipraz (75%), and also the lower dose of 1,7-phenanthroline (47%). NAD(P)H:quinone oxidoreductase activity was significantly elevated by the higher dose of all N-heterocycles (155-323%) as well as the lower dose of 1,7-phenanthroline (180%). 4. In contrast with the effect previously seen in rat, 7,8-benzoquinoline significantly elevated mouse cytochrome P450 concentration but not 7-ethoxyresorufin O-dealkylase activity. As in rat, no N-heterocycle-containing compound significantly elevated pentoxyresorufin O-dealkylase activity. 5. Overall, mouse show a more limited response in the range of drug-metabolizing enzymes induced by N-heterocycles compared with rat, but as in rat, cytochrome P450 was largely unaffected.