38 results about "Busulfan" patented technology

The invention discloses a method for simultaneously detecting multiple anti-tumor drugs in a blood sample. A pretreated sample to be detected is detected by adopting ultra-high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The pretreatment process comprises the following steps: adding serum into a mixed solution of methanol and acetonitrile, oscillating and centrifuging,taking out the centrifuged supernatant, drying, dissolving the dried powder into a methanol aqueous solution, and filtering to obtain a sample to be detected. The method can be used for simultaneously detecting 13 kinds of anti-tumor drugs such as methotrexate, 5-fluorouracil, apatinib, busulfan, carboplatin, cyclophosphamide, docetaxel, gemcitabine, imatinib, illinotecan, lenalidomide, oxaliplatin, paclitaxel and the like in blood.

A stent having a drug eluting formulation has three components: 1) Anti-neointimal hyperplasia or anti-restenosis agent 2) Main polymer 3) Additive polymer

The anti-neointimal hyperplasia or anti-restenosis agent includes, but not limited to, Paclitaxel, Taxol, Rapamycin, Tacrolimus, Actinomycin D, Methotrexate, Doxorubicin, cyclophosphamide, and 5-fluorouracil, 6-mercapatopurine, 6-thioguanine, cytoxan, cyclosporine, cytarabinoside, cis-platin, chlorambucil, busulfan, and any other drug that can inhibit cell proliferation, and combinations thereof. The main polymer includes, but not limited to, polystyrene, parylene and polyurethane. The additive polymer includes, but not limited to, polyethylene glycol capped with diisocyanate moiety (NCO-PEG).

9.0 g of parylene, 0.6 g of tacrolimus, 0.4 g of NCO-PEG and 0.01 g of triethylene amine were dissolved in 90 g of tetrahydrofuran. The resulting mixture was heated at 40° C. for 30 minutes and cooled to room temperature. To the solution was added 0.1 g of pH 8.0 aqueous solution and mixed thoroughly. The resulting solution is applied to bare metal stents for coating.

Use of busulfan amide as stabilized standards in immunoassays for quantifying the amount of busulfan in samples of human biological fluids, methods for carrying out said immunoassay and kits for use in said immunoassay.

The invention discloses a yttrium-based metal organic framework material and application thereof. The chemical formula of the yttrium-based metal organic framework material (Y-MOF) is Y<4> (M)< 2>. (DMF)<3.5>. (H<2>O), and in the chemical formula, M is 2, 4, 6-tri (4-carboxyl phenyl) 1, 3, 5-triazine, 2, 4, 6-tri (4-pyridine) 1, 3, 5-triazine or 1, 3, 5-tribenzoic acid pyridine. The yttrium-basedmetal organic framework material (Y-MOF) prepared by the invention is of a porous structure, has better biocompatibility and water stability, can be used as a carrier material for simultaneously loading metal ions (Mn < 2 + >, Fe < 2 + > and the like) and drug molecules (methotrexate, busulfan, adriamycin and the like), and has the effects of magnetic resonance imaging, chemodynamic therapy and chemical drug therapy; the yttrium-based metal organic framework material (Y-MOF) is prepared by adopting a solvothermal method, so that the method is simple, convenient and safe to operate, the raw materials are easy to obtain, and the conditions are mild.

The invention discloses novel application of 12-HEPE or pharmaceutically acceptable fatty acid thereof, and comprises the application of the 12-HEPE or the pharmaceutically acceptable fatty acid thereof in preparation of a medicine for treating NOA. The 12-HEPE or the pharmaceutically acceptable fatty acid thereof can play a therapeutic role by promoting proliferation and differentiation of the endogenous spermatogonium of a mouse damaged by busulfan, and experiments prove that recovery of the thickness and the integrity of the spermatogenic epithelium of the testis and the recovery of the sperm concentration of the tail of epididymiscan be observed through intragastric administration of the 12-HEPE into the NOA mouse induced by the busulfan, meanwhile, proliferation and differentiation of spermatogonium are promoted, expression of the paracrine factors of cells is supported, so that the 12-HEPE can be used as a new target for alleviating the spermatogenesis dysfunction of the testis of the NOA mouse, and a new method is provided for treating the non-obstructive azoospermia.

The invention relates to a combined medicine for treating leukemia, and application of the combined medicine. The combined medicine is prepared from 5-HT1A receptor agonist and busulfan. The combinedmedicine has a remarkable treatment effect in treatment of the leukemia, especially treatment of chronic myelogenous leukemia; compared with the singly used busulfan, the combined medicine is better in treatment effect; the combined medicine has a synergistic effect.

The invention relates to a busulfan sustained-release implant for the treatment of solid tumors, which is characterized in that the sustained-release implant contains anti-cancer effective amount of busulfan, sustained-release excipient and certain amount of sustained-release regulator. The sustained-release excipient mainly comprises one or the combination of the copolymer of glycolic acid and hydroxyacetic acid, polifeprosan and poly (L-lactide-co-propyl phosphate). The invention can slowly release the busulfan in the local part of the tumor during the degradation and absorption process, so the invention can maintain effective drug concentration at the local part of the tumor at the same time of significantly reducing systemic toxic reaction. The sustained-release implant is arranged at the local part of the tumor, which can not only reduce the systemic toxic reaction of busulfan, but can also selectively improve the drug concentration at the local part of the tumor and strengthen the treatment effects of chemotherapy drugs, radiation therapy and other non-surgical therapies. The solid tumors include pancreatic cancer, lung cancer, liver cancer, breast cancer, brain tumor, ovarian cancer, prostate cancer, esophageal cancer, lymphoma, osteosarcoma, colorectal cancer and so on.

The invention discloses application of a P substance in preparation of a drug for treating male infertility. Treatment of an azoospermia mouse model by the P substance finds that the P substance can effectively improve spermatogenic functions of the azoospermia mouse model caused by busulfan and further proves that the P substance improves the spermatogenic functions by promoting proliferation ofspermatogenic cells. The invention provides a new thought and theoretical support for treatment of male infertility.

The invention discloses a method for determining the content of methanesulfonic acid in busulfan. According to the method, the content of methanesulfonic acid is directly determined through the combination of a high performance liquid chromatography and a charged aerosol detector (hereinafter CAD for short). Compared with the prior art, the analysis method has the characteristics of simplicity inreproducibility, good in specificity, high in sensitivity and the like.

Novel conjugates of busulfan and novel busulfan immunogens derived from α-substituted derivatives of busulfan and antibodies generated by these busulfan linked immunogens are useful in immunoassays for the quantification and monitoring of busulfan in biological fluids.

The invention provides a liquid chromatography tandem mass spectrometry (LC- MS/MS) method for detecting busulfan in plasma. The method comprises the following steps: preparing a working solution; performing pretreatment; performing LC-MS/MS analysis; extracting a chromatogram, and fitting a calibration curve; and establishing a drug time curve graph. The LC-MS/MS method provided by the inventionoptimizes the method for detecting busulfan in human plasma, so that the analysis time is shortened to 2 minutes, and the analysis accuracy and precision and the data stability are ensured; and moreover, the method is simple in pretreatment process, short in time and easy to operate. The detection time is saved, the detection accuracy and reliability are ensured, and more accurate, stable, and high-precision and high-sensitivity detection data can be provided within shorter time.

The invention discloses a method for synthesizing busulfan, which is characterized in that: 1,4-butanediol and methanesulfonic anhydride is taken as main materials; at least one of triethylamine, pyridine, diethylisopropyl amine or sodium bicarbonate is taken as alkali; acetone, tetrahydrofuran, acetonitrile or diethyl ether is taken as solvent; and the whole reaction process is carried out underthe protection of nitrogen gas. The invention also further discloses a method for re-crystallizing busulfan. The methanesulfonic anhydride is used to replace methanesulfonyl chloride so that chlorine-containing product is avoided being produced in the synthesis technology; excessive methanesulfonic anhydride can be reacted with the alkali to form salt, and the salt can be ensured to be all removed after being repeatedly washed by large amounts of water, so that types and content of impurities in the busulfan can be effectively controlled. The method disclosed by the invention is simple, reasonable and easy to operate. The busulfan prepared by re-crystallization can be directly used for preparing injection.

The invention discloses a water-soluble host-guest compound as well as a preparation and application thereof. Water-soluble pillararene is used as a macrocyclic carrier to act with an anticancer drug busulfan, so that the stability of the water-soluble host-guest compound is greatly improved, the hydrolysis rate of the water-soluble host-guest compound is reduced, and the water solubility of the water-soluble host-guest compound is improved. The water-soluble host-guest compound as well as the preparation and application thereof has the advantages that the raw materials of the water-soluble pillararene can be commercially purchased, the synthesis is simple and convenient, the yield is high, the operation of stabilizing anticancer drugs is simple and convenient, the stabilizing effect is good, the hydrolysis rate is greatly inhibited, the water solubility is improved, the problem of hydrolysis of busulfan drugs is expected to be solved. The application prospect in the aspects of treating leukemia and reducing toxic and side effects and the like is wide.

Compositions and methods for selectively and permanently removing hair from the body. The compositions are formulated to be topically applied upon discrete areas of the body and contain an agent present in an amount sufficient to cause permanent alopecia about the area upon which the composition is applied. Exemplary of such agents include taxanes, such as docetaxel and paclitaxel, and busulfan and other agents known in the art to cause permanent chemotherapy-induced alopecia (CIA). The compositions and methods of applying the same are limited exclusively to transdermal application and operative to induce a localized CIA, and thus avoid systemic distribution of the CIA agent throughout the body. The compositions may further be deployed through known transdermal application mechanisms, such as transdermal patches and the like.

The invention discloses application of maca and maca polysaccharide in treating testis spermatogenesis disorders, and particularly relates to the application of the maca and the maca polysaccharide intreating the spermatogenesis disorders including oligospermia, asthenozoospermia and azoospermia, especially azoospermia caused by medicine. According to the application, an azoospermia model of a busulfan-induced mouse is used for verifying the improvement effect of the maca and the maca polysaccharide on the busulfan-induced azoospermia mouse.