专利号:WO-2010146391-A1 优先权日:2009-06-15 标题:Regioselective synthesis of letrozole 发明人:GORE VINAYAK GOVIND; SHUKLA VINAY KUMAR; BHANDARI SHERYAS; HASBE SURESH; MEKDE SANDEEP 权利人:GENERICS UK LTD; MYLAN INDIA PRIVATE LTD; GORE VINAYAK GOVIND; SHUKLA VINAY KUMAR; BHANDARI SHERYAS; HASBE SURESH; MEKDE SANDEEP 摘要:The present invention relates to an improved process for the preparation of letrozole (I) and its pharmaceutically acceptable salts, to compositions comprising letrozole or a pharmaceutically acceptable salt thereof, and to uses of such compositions. In particular it relates to a process and to novel intermediates for preparing letrozole and its salts substantially free from regioisomeric impurities.
专利号:US-2011190393-A1 优先权日:2008-06-03 标题:Novel and efficient method for the synthesis of an amino acid 发明人:GORE VINAYAK; GADAKAR MAHESHKUMAR; SHINDE DATTATREYA 权利人:GENERICS UK LTD 摘要:The present invention relates to a novel process for the preparation of γ-amino acids, such as (±)-3-(aminomethyl)-5-methyl-hexanoic acid (1), which is a key intermediate in the preparation of the potent anticonvulsant pregabalin, (S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid (2), and its analogues.
专利号:US-7078558-B1 优先权日:1999-08-06 标题 :Crystals of the sodium salt of pravastatin 发明人:PFLAUM ZLATKO 权利人:LEK TOVARNA FARMACEVTSKIH 摘要:Lovastatin, pravastatin, simvastatin, mevastatin, atorvastatin, fluvastatin and cervastatin and derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to an Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor , or Penicillium genus, some are obtained by treating the fermentation products using the methods of chemical synthesis (simvastatin) or they are the products of total chemical synthesis (fluvastatin, atorvastatin and cervastatin). The present invention relates to a crystalline form of the sodium salt of pravastatin, which is known by the chemical name 1-naphthaleneheptanoic acid, 1,2,6,7,8,8a-hexahydro-β,δ,6-trihydroxy-2-methyl-8-(2-methyl-1-oxobutoxy)-, mono sodium salt, which is useful as a pharmaceutical substance. The present invention further relates to the method for its preparation and isolation, to a pharmaceutical formulation containing the sodium salt of pravastatin in the crystalline form and a pharmaceutically acceptable carrier, and to a pharmaceutical method of treatment. The novel crystalline form of the sodium salt of pravastatin is useful in the treatment of hypercholesterolemia and hyperlipidemia.
专利号:US-8431523-B2 优先权日:2006-06-01 标题:Oligomeric biosurfactants in dermatocosmetic compositions 发明人:OWEN DONALD R; FAN LILI 权利人:OWEN DONALD R; FAN LILI 摘要:Oligomeric acylated biosurfactants (“OABs†) having low critical micelle concentrations of from about 1.0 ppm to about 200 ppm, preferably less than about 50 ppm, in an aqueous solution of Minimal Essential Media that can lower the surface tension in the aqueous MEM environment to less than about 50 dynes/cm 2 and have the ability to increase metabolic soluble proteins and/or increase synthesis of extracellular skin matrix proteins and/or increase rates of cell turnover while at the same time exhibiting comparatively low toxicity—preferably, an LD 50 of greater 200 ppm in 37 year-old female fibroblast cells. Another aspect of the present invention is directed to the use of OABs in formulations that are topically-applied, by which is meant the formulation is placed in direct contact with the skin, hair and nails as well as mucosa of the eyes, ears, nose, mouth, anus and vagina.
专利号:CA-2723871-A1 优先权日:2008-06-03 标题 :Process for the synthesis of .gamma. -amino acids
专利号:EP-2280930-A1 优先权日:2008-06-03 标 题 :A novel and efficient method for the synthesis of an amino acid
参考标题: Regioselective Synthesis Of Letrozole Synthèse Régiosélective De Létrozole 摘要:The Present Invention Relates To An Improved Process For The Preparation Of Letrozole (I) And Its Pharmaceutically Acceptable Salts, To Compositions Comprising Letrozole Or A Pharmaceutically Acceptable Salt Thereof, And To Uses Of Such Compositions. In Particular It Relates To A Process And To Novel Intermediates For Preparing Letrozole And Its Salts Substantially Free From Regioisomeric Impurities.
合成参考文献
摘要:United States Patent Document., #4098706 摘要:S13 | EUCOSMETICS | Combined Inventory of Ingredients Employed in Cosmetic Products (2000) and Revised Inventory (2006) | DOI:10.5281/zenodo.2624118 摘要:Final Report 04/2019 Available from CIR