摘要:
Disclosed herein is an improved process for preparation of Sevelamer hydrochloride having phosphate binding capacity of 4.7 to 6.4 mmol/g. Further, the invention discloses Sevelamer hydrochloride compositions and a novel process for preparation of said compositions comprising high shear non-aqueous granulation.
摘要:
A process for preparation of 1-isobutyl-1H-imidazo-[4,5-c]-quinoline-5-N-oxide, comprising oxidation of 1-isobutyl-1H-imidazoquinoline with meta-chloroperbenzoic acid.
摘要:
The present invention relates to an improved process for the large scale synthesis of cyclic heptapeptide using Fmoc solid phase synthesis technique. The described process assembles the peptide on a solid support resin by coupling to one another by peptide bonds to obtain a peptide wherein the coupling of cysteine to the resin employs a combination of solvents to reduce cysteine racemization. The process described relates to the use of C1-C4 alcohols as total substitute to organic nitriles thus making the process cost effective, non-toxic and eco-friendly.
摘要:
The present invention relates to a process for improving pegylation reaction yield of r-metHuG-CSF comprising conjugating r-metHuG-CSF to a PEG aldehyde at a free amine moiety at the N terminal end on the G-CSF in presence of a reducing agent in a pegylation buffer solution comprising a polyol having the formula CnH2n+2On where n is from 3 to 6, or a carbohydrate, or a derivative thereof wherein the concentration of said polyol or carbohydrate or derivative thereof is in the range of 0.1% to 10% w/w.
摘要翻译:本发明涉及一种改善r-metHuG-CSF的聚乙二醇化反应产率的方法,其包括将r-metHuG-CSF与G-CSF上N-末端的游离胺部分的PEG醛在还原剂 在包含式C n H 2n + 20n的多元醇(其中n为3至6)的聚乙二醇化缓冲溶液中,或其中所述多元醇或碳水化合物或其衍生物的浓度在0.1至10的范围内的碳水化合物或其衍生物 %w / w。
摘要:
A monolithic sustained-release pharmaceutical composition comprising a therapeutically effective dose of metformin hydrochloride as an active substance and a hydrophobic polymer and/or other hydrophobic material, wherein the metformin hydrochloride is released no more than forty percent in gastric fluid having pH 1.2 and is released no less than ninety percent eight to ten hours after administration in simulated intestinal fluid (phosphate buffer) having pH 6.8, and wherein the metformin hydrochloride displays a peak plasma concentration, a systemic bioavailability over time, and a residual plasma concentration twenty-four hours after administration of an oral dosage form of the pharmaceutical composition, so that the metformin hydrochloride concentration remains therapeutically effective and once daily administration of the pharmaceutical composition is sufficient to be therapeutically effective throughout a day.
摘要:
The present invention discloses pharmaceutical composition comprising phosphate binding polymers such as Sevelamer carbonate substantially free of monovalent anion other than bicarbonate anion. Particularly, monovalent anion content is less than about 0.05% (w/w). Disclosed are compositions comprising wet granulated Sevelamer carbonate free of added metal ions and/or added monovalent anion source.
摘要:
The present invention discloses a novel process and novel intermediates for the Preparation of 4-[2-(di-n-propyl amino) ethyl]-1,3-dihydro-2H-indol-2-one, commonly known as Ropinirole (I) and pharmaceutical composition comprising the same. Further the present invention also discloses a method of treatment for cardiovascular disorders and Parkinson's disease.
摘要:
Disclosed herein is an improved process for preparation of Sevelamer hydrochloride having phosphate binding capacity of 4.7 to 6.4 mmol/g. Further, the invention discloses Sevelamer hydrochloride compositions and a novel process for preparation of said compositions comprising high shear non-aqueous granulation.
摘要:
The present invention discloses a rapid resolution process of racemic clopidogrel base followed by conversion of the resolved (S) isomer to crystalline Clopidogrel bisulfate Form I. The invention also discloses novel racemization process of the unwanted (R) isomer of clopidogrel base. The invention further discloses an improved process for preparation of acid addition salts of clopidogrel.
摘要:
The present invention relates to the oxalate salt of 1-benzyl-4-[(5,6-dimethoxy-1-indanone)-2-yl]methyl piperidine, commonly known as Donepezil, and its method of preparation.