45 results about "Hydrocortisone acetate" patented technology

The invention relates to a preparation method of hydrocortisone acetate or an analogue thereof. Hydrocortisone acetate or the analogue thereof has a structural formula represented as a formula VIII. According to the invention, a compound I is subject to an oxidation reaction, a carbonyl protection reaction, a reduction and hydrolysis reaction, a cyano substitution reaction, a silicon alkyloxy protection reaction, an intramolecular nucleophilic substitution reaction, and a substitution reaction, such that hydrocortisone acetate or the analogue thereof is prepared. The initial raw materials areeasy to obtain, and the yield is high and stable. The compound I is represented by a formula I, wherein R is H or alkyl.

The invention relates to a preparation method of steroids compounds, in particular to the preparation of hydrocortisone and derivatives thereof. The invention adopts 17-hydroxy-4, 9-diene-pregna-3, 20-diketone as the original material which is modified by 21 bits and 9, 11 bits so as to obtain anecortave acetate retaane, the hydrocortisone and hydrocortisone acetate, and the like. The technical process of the invention adopts the existing intermediates of manufacturers as the original material; the route is simple; the feasibility is high; the operability is strong; the materials are available; the use of expensive accessories is avoided so as to largely reduce the cost of industrial manufacturing; a plurality of products can be obtained on the same manufacturing line; the yield and the cost are dramatically better than that of the prior methods used for synthesizing the hydrocortisone and the derivatives thereof; moreover, the adoption of the existing intermediates realizes the combined-line production of triamcinolone acetonide series products, hydrocortisone series products and anecortave acetate series products so as to greatly reduce the manufacturing cost and the conditions for industrial manufacturing; wherein, R is equal to minus OCOR1 and R1 is equal to the alkyl with the carbon less than 11.

The invention, relating to the field of pharmaceutical synthesis, particularly relates to a preparation method of hydrocortisone, comprising the following steps: using an intermediate 17 alfa-hydroxy-4-pregnene-3,11,20- triketone (II) in a Rhizopus nigricans method as raw material, successively carrying out ketal reaction, reduction reaction, hydrolysis reaction, iodine adding reaction, and displacement reaction to obtain hydrocortisone acetate (VII), and finally carrying out sodium hydroxide hydrolysis reaction to obtain the hydrocortisone (I). The invention has the advantages of easy obtainment of raw material, common auxiliary materials, and no need of using toxic, highly toxic, and carcinogenic reagents. The method is more efficient than the process in the prior art, and the products has good quality and yield.

This invention refers to a chemical synthesis preparation technique of acetic acid hydrocortisone. C3~C5 fat ketone is used as solvent and certain acetate is added. It is got by synthesizing hydrocortisone, acetic acid and acetic anhydride. Pyridine is replaced by low toxicity solvent, then pollution is reduced and yield is raised, the yield of acetic acid hydrocortisone can reach above 95%. The product quality is stabilized and cost is reduced, it is more acceptable for industrial production.

The invention relates to a method for directly generating prednisolone through bio-fermentation in one step by using cortisone acetate as a raw material and Arthrobacter Simple ATCC 21032.

The invention relates to a method for preparing hydrocortisone acetate. Three to twenty parts of dipolar aprotic solvent (including but not limited to dimethyl formamide or dimethyl sulfoxide and the like) is taken as the solvent, 0.1 to 1.5 parts of cheap organic amine (including but not limited to triethylamine, ethanediamine or piperidine and the like) is taken as the catalyst, one part of hydrocortisone and 0.4 to 1.0 part of acid anhydride react for 2 to 8 hours at 15 to 80 DEG C, and the hydrocortisone acetate can be prepared through adding water. The method replaces pyridine with low-toxic solvents, thereby reducing the environmental pollution and increasing the yield. The yield of the hydrocortisone acetate can reach more than 95 percent, the single maximum impurity is 0.82 percent, and the total impurity is 1.68 percent. The method stabilizes the product quality, reduces the cost, and is more suitable for large-scale industrialized production.

The invention relates to synthesis of hydrocortisone butyrate, which comprises the following steps of: A. carrying out acylation reaction on hydrocortisone acetate adopted as a raw material and butyl chloride in an organic solvent I under the condition of existence of a catalyst; after the reaction is finished, adding acid to adjust a pH value being smaller than 5; diluting or recrystallizing to obtain hydrocortisone 17alpha-butyrate-21-acetate; and B. adopting the hydrocortisone 17alpha-butyrate-21-acetate as a raw material, adding inorganic alkali in an organic solvent II and carrying out selective hydrolysis reaction to obtain hydrocortisone 17alpha-butyrate.

The invention discloses a preparation method of hydrocortisone acetate, belonging to the field of chemical pharmacy. The preparation method comprises the following steps: by using an intermediate Pu's oxide in the traditional cortisone acetate synthesis technique as a raw material, sequentially carrying out ketalation reaction, reduction reaction, hydrolysis reaction, iodine reaction and acetylation reaction under certain conditions to obtain the product hydrocortisone acetate. The preparation method of hydrocortisone acetate has the advantages of accessible raw materials and common auxiliary materials, and does not need some toxic, virulent and cancerigenic reagents in the original technique. The invention is environment-friendly and effective; the product has both high quality and yield; and the HPLC (high performance liquid chromatography) content is up to higher than 98.5%, and the yield is up to higher than 80%.

The invention discloses a refining method for hydrocortisone acetate. The refining method comprises the step of purifying a hydrocortisone acetate crude product with chlorine gas or with hypochorite, glacial acetic acid and sodium chloride, so as to obtain a hydrocortisone acetate refined product. The refining method is simple, convenient, low in manufacturing cost, high in yield and product purity, stable in process, and suitable for producing a large quantity of the hydrocortisone acetate refined product.

The invention relates to a preparation method of hydrocortisone acetate. A steroid raw material compound A is subjected to alkynylation reaction, solid-supported catalytic oxidation reaction and addition reaction to prepare hydrocortisone acetate. According to the method, the starting material is a basic steroid raw material, the source is easy to obtain, the cost is low, the synthesis procedure is short, all steps of reaction are relatively easy to implement, the yield is high, the catalyst and the carrier can be recycled, dangerous and toxic materials such as bromine are avoided, the dependence on high-end equipment is greatly reduced, the environment pollution is reduced, the production is more economic and environmental-friendly and safer, and the preparation method of the hydrocortisone acetate is more suitable for industrial production.

The invention discloses a preparation method of a high-sensitivity functionalized silver nanoparticle-doped aniracetam MIECS (Molecular Imprinting Electrochemical Sensor). The preparation method is characterized by taking aniracetam as a template molecule, dihydromyrcenol as a functional monomer, hydrocortisone acetate as a coupling agent and decyl mercaptan functionalized silver nanoparticles as a doping agent, thus preparing the high-sensitivity decyl mercaptan functionalized silver nanoparticle-doped aniracetam MIECS. An analysis method is simple and practical, and the disadvantages of complexity, expensive price of equipment and low sensitivity of a previous analysis method are overcome.

The invention discloses a preparation method of prednisone, and belongs to the technical field of preparation and processing of medicines. According to the method, hydrocortisone acetate is used as aninitial raw material, and the prednisone is prepared through three steps of oxidation, biological fermentation dehydrogenation and hydrolysis. According to the preparation method of prednisone, the defects of a traditional process are overcome, the target product is high in purity, good in quality stability, high in yield, low in production cost and mild in reaction condition, a highly toxic cyanide reagent is prevented from being used, and the method is easy and convenient to operate, suitable for industrial production and wide in market prospect.

The present invention is directed to a medicinal composition for treating skin inflammations, fungal/bacterial skin infections and related wounds, and also other skin wounds including those caused by burns. The cream also causes skin rejuvenation through an epithelisation process. The cream comprises:

• a) a biopolymer in the form of Chitosan, b) active Pharmaceutical Ingredients (APIs), in the form of fusidic acid that has been generated in situ from sodium fusidate Hydrocortisone acetate & clotrimazole, c) a cream base containing primary and secondary emulsifiers, waxy materials, co-solvents, acids, preservatives, buffering agents, anti oxidants, chelating agents, and humectants and d) water. The invention also discloses a process to make medicinal cream containing Fusidic acid formed in situ from Sodium Fusidate by converting it into Fusidic acid under oxygen-free environment. The cream has greater shelf-life and the finer particle size of the API than the conventional creams containing Fusidic acid.

The present invention is directed to a composition for treating bacterial skin infections & skin inflammation, along with skin rejuvenation. More particularly, the present invention relates to a pharmaceutical cream comprising a biopolymer, a corticosteroid and an antibacterial active ingredient. It discloses a composition for treating fungal skin infections & skin inflammation, along with skin rejuvenation containing a) a biopolymer in the form of chitosan, b) a combination of active pharmaceutical ingredients (APIs), miconazole and hydrocortisone acetate used in treating bacterial skin infections & skin inflammations, c) a cream base containing primary and secondary emulsifiers, waxy materials, co-solvents, acids, preservatives, buffering agents, anti oxidants, chelating agents, and humectants and d) water. The active ingredients, namely chitosan, corticosteroid in the form of hydrocortisone acetate, and an antibacterial agent in the form of miconazole, are incorporated in cream base for use in treating bacterial skin infections and skin inflammation due to allergy & itching, & wounds on human skin involving contacting human skin with the above identified composition.

The fluhydrocortisone acetate tablet is mainly prepared from fluhydrocortisone acetate, lactose, a disintegrating agent, a flow aid and a lubricant, the disintegrating agent is directly pressed starch, and the fluhydrocortisone acetate tablet does not contain ionic auxiliary materials. The preparation method comprises the following steps: (1) sieving the fluorohydrocortisone acetate and the lactose, adding the sieved fluorohydrocortisone acetate and lactose into a mixer, and then adding the directly pressed starch for mixing; (2) adding a flow aid into the mixed material obtained in the step (1), and continuously mixing; (3) adding a lubricant into the mixed material obtained in the step (2), and carrying out final mixing; and (4) tabletting and molding the mixed material obtained in the step (3) to obtain the hydrocortisone acetate tablet. The direct-pressed starch is innovatively adopted to replace a traditional ionic auxiliary material to serve as a disintegrating agent, so that negative effects caused by the use of the ionic auxiliary material can be avoided, and the storage stability of the hydrocortisone acetate tablet can be improved under the condition of ensuring that the dissolution rate of the product is consistent with that of an original developed agent; and the use safety of the product is further ensured.

The invention relates to the hydrocortisone derivative of formula (I), whose IUPAC name is 3-[3, 5-Dihydroxy-3-(2-hydroxy-acetyl)-3a, 6-dimethyl- 7-oxo-dodecahydro-cyclo- penta[alpha]naphthalen-6-yl] -propionic acid, designated as Deina TM , for use in the treatment of atrophic tissues, particularly skin, cartilage, connective, and mucosal tissues and scalp skin.