44 results about "Furanocoumarin" patented technology

The present invention provides compositions of bakuchiol (UP246) having low levels of impurities, particularly furanocoumarin impurities. The present invention further provides improved methods for the isolation, purification and analysis of compositions of bakuchiol. Finally, the present invention provides methods for using the purified bakuchiol compositions and formulations thereof for the prevention and treatment of various diseases and conditions mediated by cyclooxygenase (COX), lipoxygenase (LOX), minor inflammatory conditions and various microbial infections. The methods of this invention are comprised of administering to a host in need thereof an effective amount of the composition of this invention together with a pharmaceutically acceptable carrier.

The invention provides a linear furocoumarin derivate with a structure expressed by formula 1, a method for preparing the same, an application of the linear furocoumarin derivate and a drug composition containing the linear furocoumarin derivate. The linear furocoumarin derivate has an activating function to GLUT4 membrane transfer and protein expression, and can be used as drugs for treating diabetes mellitus and complicating diseases of the diabetes mellitus.

Methods for treating excess pigmentation, including treatment of post inflammatory hyperpigmentation (PIH), are disclosed. The disclosed methods comprise administration of a composition comprising bakuchiol substantially free of furanocoumarins to a mammal. Compositions comprising bakuchiol and methods for their preparation are also disclosed.

The invention provides a furanocoumarin-Base derivative, wherein the structural formula of the derivative is as shown in the following formula 6 or 7; the derivative is synthesized by performing ringformation and coupling reaction on parabromoaniline,paraformaldehyde, 4-hydroxycoumarin, isonitrile and n-butyllithium; and the synthesis process is mild in reaction condition, short in reaction timeand high in yield. The Base derivative containing a coumarin fragment has excellent luminescent property and high bioactivity; some of the products have anti-tumor activity, show high-selectivity inhibition on human triple negative breast cancer cells (MDA-MB-231) and have research value of being further developed into anti-tumor medicines; and the other products can be applied to synchronous detection on neuroblastoma metabolites homovanillic acid (HVA) and vanilmandelic acid (VMA) and have the potential of being developed into a high-efficiency fluorescent probe for human neuroblastoma earlywarning and definite diagnosis.

The invention discloses a method for synthesizing furan [3,2-c] coumarin derivatives. The method comprises the following step: reacting 2,3-dichloro-5,6-dicyano-1,4-benzoquinone serving as a butylene dinitrile block with a 4-hydroxycoumarin analogue in a dried organic solvent at room temperature for several hours, thereby obtaining the target. According to the method, the defects that the raw materials need to be pre-functionalized or expensive metal catalysts are needed in the prior art are overcome. The synthesis method disclosed by the invention is of significance in the research field of furan [3,2-c] coumarin derivatives.

The invention relates to a site-directed mutagenesis modified saccharomyces cerevisiae dipeptidyl peptidase III. The site-directed mutagenesis modified saccharomyces cerevisiae dipeptidyl peptidase III is characterized in that the site-directed mutagenesis modified saccharomyces cerevisiae dipeptidyl peptidase III is a mutant generated by substitution of multiple amino acids in saccharomyces cerevisiae dipeptidyl peptidase III derived from saccharomyces cerevisiae S288c and having an amino acid sequence being SEQ ID NO.1, substitution of the multiple amino acids refers to substitution of a 570th site, a 572th site and a 574th site, and the site-directed mutagenesis modified saccharomyces cerevisiae dipeptidyl peptidase III is modified into an enzyme with an oxygenolysis effect on 6-methoxy di-furocoumarin. The site-directed mutagenesis modified saccharomyces cerevisiae dipeptidyl peptidase III can be applied to preparation of products for removing the 6-methoxy di-furocoumarin from feedstuffs, additives of the feedstuffs, foods and additives of the foods and can be further applied to preparation of medicines for preventing diseases induced by the 6-methoxy di-furocoumarin.

The invention discloses a special insecticide for Shatian pomelo as well as a preparation method and application thereof and relates to the technical field of insect killing of the Shatian pomelo. Thespecial insecticide is prepared from the following components in parts by weight: 30 to 50 parts of a traditional Chinese medicine extracting solution, 1 to 5 parts of azadirachtin, 1 to 3 parts of celangulin-V, 2 to 6 parts of toosendanin, 3 to 5 parts of camptothecin, 2 to 8 parts of furanocoumarin, 3 to 8 parts of plant essential oil, 1 to 3 parts of sodium hydroxide, 0.5 to 2 parts of acetone, 1 to 6 parts of 95 percent ethanol and 1 to 3 parts of an emulsifier. After the special insecticide for the Shatian pomelo is blended with water which is 100 to 200 times of the volume of the special insecticide, a mixture is sprayed on plant parts with insect pests or whole plants, and can be used for efficiently preventing and controlling the insect pests including phyllocoptruta oleivora ashmead, scale insects, phyllocnistis citrella, Resseliella ctitrifrugis Jiang, bactrocera dorsalis, aphids and contarinia citri barnes of the Shatian pomelo, and the insect killing rate reaches 99 percent or above; the special insecticide for the Shatian pomelo has the advantages of low toxicity, easiness for degradation, no residues and no harms to people and environment, and accords with a conceptof green and pollution-free planting of the Shatian pomelo.

The invention relates to new compounds, in particular linear furanocoumarin compounds with antitumor activity and pharmaceutical application thereof. The general formula of an angelica oncosepala linear furocoumarins compound is shown in the description, wherein R is -H or -CH(CH3)2. The invention relates to the application of the angelica oncosepala linear furocoumarins compound in preparation of tumor cell inhibiting medicines.

The invention relates to a cold-resistant and antibacterial plastic which comprises components of raw materials in parts by weight as follows: 100 parts of PVC (polyvinyl chloride), 15 parts of cylindrin, 6 parts of modified calcium chloride, 5 parts of talcum powder, 3 parts of sodium chloride, 3 parts of sodium sulfate, 3 parts of calcium sulfate, 3.5 parts of modified nano calcium carbonate, 2.5 parts of di-tert-butyl peroxide, 1.5 parts of furocoumarin, 1.5 parts of beta-sitosterol, 1 part of lactone of bamboo leaves and 1 part of phenolic ketone of bamboo leaves. The plastic comprises natural antibacterial ingredients, has a durable antibacterial effect and is resistant to low temperature, and the cold-resistant temperature can be up to subzero 60 DEG C.

The invention discloses a blood pressure lowering application of furancoumarin in cancura, belonging to the fields of natural medicine chemistry and biomedicine. The furanocoumarin has a significant vasodilating effect, and can be used for preparing antihypertensive drugs and / or health products. The furancoumarin compound can be prepared into any pharmaceutically acceptable preparation. The invention opens up a new medical application of the furanocoumarin compound, has the characteristics of strong pharmacological action and high safety, and provides a new, effective and safe drug selection for the cardiovascular patients.

The invention discloses a furocoumarin compound, and a preparation method and medical application thereof. The furocoumarin compound is a novel compound having vasodilating activity; and the compoundis obtained by structurally modifying and optimizing the natural product xanthotoxin to improve its physical and chemical properties, pharmacological activity and drug-forming properties. The preparation method for the furocoumarin compound provided by the invention has the advantages that raw materials are widely available, reaction conditions are mild, reaction process is simple to operate and reagents used therein are cheap and easily available. The prepared novel furocoumarin compound has effect similar to the effect of xanthotoxin; the study results of isolated vascular ring tension indicate that the relaxation effect of the novel furocoumarin compound on the aortic vessels of rat is stronger than the relaxation effect of xanthotoxin and the positive control drug nifedipine; the cytotoxicity of the novel furocoumarin compound on normal liver cells L02 in vitro is significantly lower than the cytotoxicity of nifedipine; and the results of in-vivo antihypertensive studies show thatthe antihypertensive effect of the novel furocoumarin compound is stronger than the antihypertensive effect of xanthotoxin and nifedipine, so the novel furocoumarin compound can be applied to the preparation of antihypertensive drugs.

The present disclosure relates generally to systems and methods for the photo-inactivation of microorganisms. More specifically, the present invention is directed towards the photo-inactivation of microorganisms, such as viruses, using at least one furanocoumarin and broad spectrum pulsed light. For example, an aspect of the present invention includes a method for inactivating a herpesvirus, such as herpes B virus or herpes virus papio 2 using a psoralen and broad spectrum pulsed light.

The invention relates to the field of medicament application, and in particular discloses application of furocoumarin compounds in preparation of anti-hepatitis B virus (HBV) medicaments. The compounds are different from current commercial anti-HBV medicaments, and belong to non-nucleoside compounds; cytological experimental studies show that the compounds can inhibit the replication of HBV DNA (deoxyribonucleic acid) and the secretion of HBsAg and HBeAg; and cytotoxicity tests show that the compounds have very low toxicity, so the compounds can be safely used for preparing the medicaments for treating and / or preventing related diseases caused by HBV infection.

The invention discloses an application of combination of a lignan compound and a furocoumarin compound to reduction of expression of any one or more of transforming growth factor-[beta]1, platelet-derived growth factor and vascular endothelial cell growth factor mRNA. The combination of the lignan compound and the furocoumarin compound remarkably reduces the liver fibrosis degree of mice in a BDLmodel and a CCl4 model.

The invention discloses a method for the online determination of furocoumarin content based on combination of MSPD extraction and FESI-MCDS-MEKC, which comprises the following steps: mixing a sample to be detected with an adsorbent, pulverizing to obtain mixed powder, eluting the mixed powder with a solid phase extraction column, collecting effluent, and volatilizing a solvent to obtain an extract; respectively pretreating a capillary tube and the extract, carrying out electrophoretic analysis on the basis of the FESI-MCDS-MEKC to obtain the peak area of furocoumarin in the extract, and substituting the peak area into a corresponding standard curve to obtain the content of furocoumarin in the sample to be detected. The method is simple and convenient to operate, short in analysis time, high in separation efficiency, accurate, reliable and good in reproducibility, the enrichment multiple reaches 302 times, and the contents of notopterol, isoimperatorin and imperatorin in the sample to be detected can be accurately determined.

The invention discloses a polypropylene composite material as well as a preparation method and an application thereof, and relates to the field of modified plastics. The invention provides the polypropylene composite material. The polypropylene composite material comprises the following components in parts by weight: 70-90 parts of polypropylene resin, 2.3-3 parts of a flame-retardant composition and 6-12 parts of an insect-repelling composition, wherein the flame-retardant composition is prepared from the following components: aluminum hypophosphite, melamine cyanurate and mercuric chloride; the insect repelling composition contains furocoumarin, and the mass percent of the furocoumarin in the insect repelling composition is 5-60%. The insect-repelling composition further comprises at least one of fipronil and bifenthrin. The invention provides a flame-retardant PP material with termite repelling and killing functions.

The invention provides an aspergillus nidulans recombinant strain capable of massively synthesizing furocoumarin. A culture method of the aspergillus nidulans recombinant strain is simple and the cost is low. In addition, coarse extract of the strain has a relatively high insecticidal efficiency, and the product extraction method is simple. The aspergillus nidulans recombinant strain can be effectively used for preventing and treating insects. The aspergillus nidulans recombinant strain has wide practical value and economical value.

A method for removing furanocoumarins from a liquid includes the steps of incubating the liquid with fungal hyphae for at least about two hours and removing the hyphae from the liquid by a filtration step. The furanocoumarins can be recovered from the hyphae using methods within the ordinary skill in the art. The method is useful for the removal of furanocoumarins from furanocoumarin-containing citrus juice so that the juice can be safely consumed by humans taking drugs that are metabolized by P450 CYP3A, which is the enzyme responsible for the metabolism of many widely-prescribed medications.

The invention discloses a furocoumarin compound capable of labeling single cells of mycobacterium tuberculosis, the compound has a structure as shown in a formula I, a formula II or a formula III, and the compound can realize effective and real-time detection of clinical suspected tuberculosis patients through fluoroscope.

The present invention discloses uses of a natural angular furan coumarin compound Cniforin B as an agricultural bactericide. The compound Cniforin B is used for controlling agricultural fungal diseases as a bactericide, and can effectively control crop diseases such as rape sclerotinia, strawberry gray mold, wheat scab, pepper anthracnose and tomato early blight. The agricultural bactericide made by using the natural compound Cniforin B as the active ingredient has the characteristics of good controlling effect, broad spectrum, low toxicity, no residues, no contaminants and no public nuisance, and is particularly beneficial to environmental protection.

The invention discloses a formula for a nylon toothbrush filament containing natural antibiotic components. The formula comprises, by weight, 100 parts of nylon, 3 to 6 parts of furocoumarin, 3 to 6 parts of beta-sitosterol and 4 to 5 parts of a sulfate mixture. The nylon toothbrush filament contains natural antibiotic components and has a long-lasting antibiotic effect, a long service life and no toxic and side effects.

The present invention discloses a plant-derived photoactivation toxin insecticide, and relates to the technical field of chemical industry. The plant-derived photoactivation toxin insecticide comprises, by weight, 15-25 parts of alpha-terthiophene, 5-10 parts of furocoumarin, 10-15 parts of isoquinoline alkaloid, 1-5 parts of capillene, and 3-10 parts of Juxiangsu. According to the present invention, the ratio of each component is optimized, the prepared plant-derived photoactivation toxin insecticide has advantages of easy decomposition, no environmental pollution, safety on natural enemy, drug resistance generation resistance, is the natural product, and does not have toxicity or has low toxicity, wherein the toxicity of the plant-derived photoactivation toxin insecticide on pests is significantly increased by tens or thousands of times the original toxicity under illumination or near ultraviolet light illumination.

A method for inhibiting production of furanocoumarins in a plant, includes inhibiting in the plant the expression of a protein named GfPT, the GfPT protein having coumarin-specific prenyltransferase activity and having at least 70% sequence identity with the polypeptide set forth in SEQ ID NO: 1.

The invention provides furocoumarin having DPPIV enzyme inhibition activity and a preparation method of the furocoumarin having DPPIV enzyme inhibition activity. The structural formula of a furocoumarin type compound 6-beta-D-glucosyl-6,7-dihydroxy-5-benzfuran methyl propionate is as shown in a formula (I), and the furocoumarin type compound is separated from dry products or fresh products of fruits, roots, stems, branches or leaves of clausena lansium. In vitro pharmacological experiment confirms the compound 6-beta-D-glucosyl-6,7-dihydroxy-5-benzfuran methyl propionate has significant inhibition effects on DPPIV enzymes, the IC50 value of the compound 6-beta-D-glucosyl-6,7-dihydroxy-5-benzfuran methyl propionate is 117+ / -8.7[mu]M, which illustrates that the compound 6-beta-D-glucosyl-6,7-dihydroxy-5-benzfuran methyl propionate has favorable DPPIV enzyme inhibition activity. The furocoumarin type compound 6-beta-D-glucosyl-6,7-dihydroxy-5-benzfuran methyl propionate is hopeful to be used as a lead compound for developing a novel DPPIV enzyme inhibitor medicine.

The invention discloses an escherichia coli strain and a method for biologically synthesizing pyranocoumarin and furocoumarin by using the escherichia coli strain. The strain is escherichia coli BL21 (DE3) containing benzopyran biosynthesis related genes; and the benzopyran biosynthesis related gene comprises at least one of a ximD gene and a ximE gene. According to the invention, FAD-dependent monooxygenase XimD and cyclase XimE are introduced into Escherichia coli, and pyranocoumarin and furocoumarin are produced in Escherichia coli by inducible expression of the two genes and addition of a substrate at the same time. According to the invention, the biosynthesis of furocoumarin and pyranocoumarin in microorganisms is realized for the first time.