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Mercian Corporation Patents
Assignee:
Mercian Corporation
Address:
Tokyo, JP
No. of patents:
33
Patents:




Patent Number Title Of Patent Date Issued
7256178 Physiologically active substances August 14, 2007
Compounds represented by the following general formula (I), pharmacologically acceptable salts thereof or hydrates of the same: (I) wherein W represents ##STR00001## and R.sup.3, R.sup.7, R.sup.16, R.sup.17, R.sup.20, R.sup.21 and R.sup.21' are the same or different and each represe
7247729 Method for producing pipecolamide derivative July 24, 2007
A method of manufacturing a pipecolamide derivative, characterized in that pipecolic acid or an acid salt thereof is reacted with an amine in an inert solvent in the presence of a condensing agent such as dicyclohexylcarbodiimide, 1-ethyl-2-(2-dimethylaminopropyl)carbodiimide, methan
7235388 Isolated nucleic acid encoding L-lysine: 2-oxoglutaric acid 6-aminotransferase June 26, 2007
Provided are an isolated gene capable of participating in the production of L-homoglutamic acid, and a production system of L-homoglutamic acid by using this gene. The gene is derived from the genome of Flavobacterium lutescens.
7115412 Process for the preparation of optically active 7-substituted-3-(2-aminopropyl)indole derivative October 3, 2006
Disclosed are a process for preparation of an optically active 7-substituted 3-(2-aminopropyl)indole compound and an intermediate therefor. In the above preparation process, 7-substituted indole is reacted with L- or DL-serine in the presence of a tryptophan-synthesizing enzyme origi
7060821 Osteoclast differentiation inhibitors June 13, 2006
A compound represented by formula (I); a process for producing a compound (substance F-1490) of formula (I), wherein X represents --O-- and R represents a hydroxyl group, by using a microorganism belonging to the genus Cunninghamella; and a Cunninghamella sp. F-1490 strain (FERM BP-8
7026352 Physiologically active substances April 11, 2006
The present invention provides a novel bioactive substance having an antitumor activity and a process for producing it, and a medical use thereof. Namely, it provides a 12-membered ring macrolide compound represented by the following formula obtained from the incubation solution of S
7022502 Process for the biological production of L-pipecolic acid April 4, 2006
A process for the production of L-pipecolic acid which comprises the step of reducing delta-1-piperideine-6-carboxylic acid by the use of pyrroline-5-carboxylate reductase. The delta-1-piperideine-6-carboxylic acid is obtained by the step of converting L-lysine by the use of lysine 6
6900340 Preparation of isocoumarin derivatives and intermediates for the synthesis thereof May 31, 2005
A method of preparing optically active isocoumarin-3-yl-acetic acid derivatives represented by Formula (I): ##STR1##wherein a specific isocoumarin-ketene derivative is subjected to an addition reaction with an optically active alcohol, and then the ester thus obtained is subjected to
6890746 Gene participating in the production of homo-glutamic acid and utilization thereof May 10, 2005
Provided are an isolated gene capable of participating in the production of L-homoglutamic acid, and a production system of L-homoglutamic acid by using this gene. The gene is derived from the genome of Flavobacterium lutescens.
6747012 Crystalline anthracycline antibiotic and process for producing the same June 8, 2004
Disclosed are a crystalline form of anthracycline antibiotic having specific characteristic 2.theta. values as measured by the X-ray diffraction method, and a process for producing the crystalline form. This process comprises the step of crystallization involving the combined use of
6653455 Crystallization of doxorubicin hydrochloride November 25, 2003
Disclosed are a crystallizing method of doxorubicin hydrochloride from a doxorubicin hydrochloride-containing solution, particularly a method for carrying out the crystallization under a condition of 40.degree. C. or higher, and a doxorubicin hydrochloride crystalline aggregate having
6589981 Tumor radiosensitization and/or chemopotentiation using isocoumarin derivatives July 8, 2003
A method for enhancing the efficacy of chemotherapy and/or radiation in the treatment of cancer in animals, particularly humans, is provided wherein certain isocoumarin derivatives which exhibit unique radiosensitization activity and/or chemopotentiation properties are employed in a comb
6566394 Salicylamide derivatives May 20, 2003
Salicylamide derivatives represented by formulae (1a) and (1b); intermediates in the production thereof; a process for producing the same; and drugs containing the same as the active ingredient. The salicylamide derivatives represented by formulae (1a) and (1b) are useful as anti-inf
6548695 Process for producing isocoumarins and intermediates for the same April 15, 2003
Provided is a process for producing an isocoumarin-3-yl-acetic acid derivative, characterized by reacting a homophthalic acid derivative represented by a formula: ##STR1##(wherein R.sub.c, R.sub.2 and R are mainly protecting groups) with a malonic acid derivating represented by a for
6426420 Process for producing isocoumarines and intermediates for the same July 30, 2002
Provided is a process for producing an isocoumarin-3-yl-acetic acid derivative, characterized by reacting a homophthalic acid derivative represented by a formula: ##STR1##(wherein R.sub.c, R.sub.2 and R are mainly protecting groups) with a malonic acid derivating represented by a for
6410759 Dihydroxycholesterol hydroxylated at 17- and 25-positions June 25, 2002
A method for preparing at least one hydroxycholesterol chosen from the group consisting of 25-hydroxycholesterol, 17,25-dihydroxycholesterol and 25,26-dihydroxycholesterol by biological hydroxylation of cholesterol, and the aforementioned dihydroxycholesterols. In the above biological
6388058 Method of purifying daunomycin May 14, 2002
The present invention relates to a method in which daunomycin is eluted from a hydrophobic porous synthetic resin carrier onto which daunomycin is adsorbed from crude daunomycin with a buffered aqueous solution containing a water-miscible organic solvent to recover purified daunomycin.
6361987 Gene encoding a protein having asymmetric hydrolase activity for 4-substituted 1,4-dihydropyridi March 26, 2002
This invention provides DNA fragments for efficiently preparing a protein having asymmetric hydrolase activity for 4-substituted 1,4-dihydropyridine derivatives, transformants obtained by using such a DNA fragment, and a process for preparing the aforesaid enzyme. Specifically, an isolat
6146844 Process for producing hydroxylated cholesterols and dihydroxycholesterols using amycolata November 14, 2000
A method for preparing at least one hydroxycholesterol chosen from the group consisting of 25-hydroxycholesterol, 17,25-dihydroxycholesterol and 25,26-dihydroxycholesterol by biological hydroxylation of cholesterol, and the aforementioned dihydroxycholesterols. In the above biological
6143541 Gene encoding a protein having symmetric hydrolase activity for 4-substituted 1,4-dihydropyridin November 7, 2000
This invention provides DNA fragments for efficiently preparing a protein having asymmetric hydrolase activity for 4-substituted 1,4-dihydropyridine derivatives, transformants obtained by using such a DNA fragment, and a process for preparing the aforesaid enzyme. Specifically, an isolat
6133443 Optically active 1,4-dihydropyridine derivatives and process for the preparation thereof October 17, 2000
Optically active 1,4-dihydropyridine derivatives represented by general formula (I) and anion salts thereof and a production method therefor: ##STR1## (wherein R.sup.1 represents a C.sub.1-6 alkyl group, R.sup.2 represents a nitrogen-containing heterocyclic group forming a quaternary
6043050 Biological process for producing steroids hydroxylated at the 25-position March 28, 2000
A biological process for producing steroids hydroxylated at the 25-position thereof comprises adding steroids (excluding cholesterol) to the cells or culture liquid of a microorganism of the genus Amycolata or Sphingomonas capable of hydroxylating the steroids at the 25-position thereof
5906927 Process for producing L-2-aminoadipic acid May 25, 1999
A process for producing L-2-aminoadipic acid, which comprises converting an aminomethyl group of L-lysine into a carboxyl group by use of a culture of a microorganism of the genus Flavobacterium. By this process, L-2-aminoadipic acid can be obtained directly from L-lysine in a high y
5760238 1,4-dihydropyridine derivatives June 2, 1998
Disclosed are 1,4-dihydropyridine derivatives represented by the general formula (I) and salts thereof, as well as optical active 1,4-dihydropyridine derivatives represented by the general formula (II) and salts thereof which are obtained from the derivative by biochemical reactions
5395941 Optically active 1,4-hydropyridine compounds March 7, 1995
Optically active 1,4-dihydropyridine derivatives represented by general formula (I), process for preparing compounds (Ic) (in general formula (I) , R.sup.1 is a lower alkyl group), process for preparing compounds represented by general formula (II) by hydrolyzing the compounds (Ic) u
5376537 Process for production of cyclodextrins December 27, 1994
A process for the production of cyclodextrins, comprising reacting non-treated starch with cyclodextrin-glycosyl-transferase produced by Bacillus ohbensis (FERM BP-3180), or produced by a mutant derived from Bacillus ohbensis (e.g., FERM BP-3180), or produced by any other strain in w
5322937 Genes encoding a 3-acylation enzyme for macrolide antibiotics June 21, 1994
A DNA fragment or a restriction enzyme-digested DNA fragment, the DNA fragment containing a gene, acyA, encoding a 3-acylation enzyme for macrolide antibiotics, characterized by being derived from a strain belonging to the genus Streptomyces, having a size of about 1.8 kb or about 3.
5252304 Formalin sterilization apparatus October 12, 1993
A reaction chamber is disposed between a heating chamber and an outlet line of the heating chamber, and performs a reaction of ammonia gas vaporized in the heating chamber with formaldehyde circulated from a room to be sterilized. A filter is disposed between the reaction chamber and the
5232943 Antibiotics Mer-AF1032A and Mer-AF1032B August 3, 1993
Antibiotic Mer-AF1032A represented by the following formula (I) and its isomer antibiotic Mer-AF1032B are disclosed. Also disclosed are a method for preparing the antibiotics comprising the cultivation of a strain belonging to genus Penicillium and a pharmaceutical composition comprising
5223519 4-hydroxypyridine derivatives, useful for treating circulatory diseases June 29, 1993
4-Hydroxypyridine derivative represented by the following formula ##STR1## wherein R represents a methyl group or an isopropyl group, and the method for preparing the derivative comprising the step of cultivating a strain belonging to Streptomyces karnatakensis are disclosed. Also di
5183883 Conjugate of adriamycin and cyclodextrin February 2, 1993
Adriamycin derivatives represented by formula (I) ##STR1## wherein R denotes a divalent hydrocarbon group,CD denotes a cyclodextrin residue,m is 1 to 8, andn is 0 to 8.The compounds exhibit excellent anti-cancer activity over a wide administration range, have low toxicity and sustained r
5149802 Process for producing azetidinone derivatives September 22, 1992
A process for producing 2-azetidinone derivatives represented by formula ##STR1## wherein R.sup.1 denotes a protecting group of a hydroxyl group,Z denotes a hydrogen atom or a protecting group of an amino group, andQ denotes ##STR2## in which X denotes a halogen atom, Y denotes a ha
5132136 Condensed wine composition for cooking and method of preparing the same July 21, 1992
A condensed wire composition containing an extract content of no less than 18% (w/v) is obtained by vacuum condensing a wine at a temperature of 5.degree. to 60.degree. C., preferably 20.degree. to 35.degree. C. to a concentration by at least 8 times as high as the original, retaining th

 
 
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