Patents Assigned to Dong A. Pharm. Co., Ltd.
  • Patent number: 9221790
    Abstract: The present invention provides a novel benzamide derivative or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a 5-HT4 receptor agonist containing the same as an active ingredient. Benzamide derivatives of the present invention have a superior affinity for 5-HT4 receptors, a capability to reduce a gastric emptying time and a low toxicity, and consequently are therapeutically effective for the treatment of a variety of diseases associated with 5-HT4 receptors.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 29, 2015
    Assignee: Dong-A Pharm. Co., Ltd.
    Inventors: Soon-Hoe Kim, Weon-Bin Im, Sung-Hak Choi, Sun-Ho Choi, Ju-Hee Sohn, Hyun-Jung Sung, Mi-Yeon Kim, Kang-Hun Cho, Tae-Kyoung Sohn
  • Patent number: 9018379
    Abstract: Disclosed herein is a method of preparing solifenacin or a salt thereof, including the steps of: (a) reacting (R)-quinuclidinol with bis(pentafluorophenyl)carbonate in an organic solvent to prepare a solifenacin intermediate, (3R)-1-azabicyclo[2,2,2]oct-3-yl pentafluorophenylcarbonate, and (b) reacting the solifenacin intermediate with (1S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline in an organic solvent to prepare solifenacin. The method is advantageous in that high-purity solifenacin or a salt thereof can be simply and efficiently prepared with high yield using a novel intermediate.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: April 28, 2015
    Assignee: Kyung Dong Pharm. Co., Ltd.
    Inventors: Byoung Suk Lee, Sang Hoon Shin, Ki Young Lee
  • Publication number: 20150112072
    Abstract: Disclosed herein is a method of preparing solifenacin or a salt thereof, including the steps of: (a) reacting (R)-quinuclidinol with bis(pentafluorophenyl)carbonate in an organic solvent to prepare a solifenacin intermediate, (3R)-1-azabicyclo[2,2,2]oct-3-yl pentafluorophenylcarbonate, and (b) reacting the solifenacin intermediate with (1S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline in an organic solvent to prepare solifenacin. The method is advantageous in that high-purity solifenacin or a salt thereof can be simply and efficiently prepared with high yield using a novel intermediate.
    Type: Application
    Filed: March 21, 2013
    Publication date: April 23, 2015
    Applicant: Kyung Dong Pharm. Co., Ltd.
    Inventors: Byoung Suk Lee, Sang Hoon Shin, Ki Young Lee
  • Patent number: 8765197
    Abstract: The present invention relates to herbal extracts of Sinapis Semen, Corydalis Tuber, Pharbitidis Seed, and Strychni Ignatii Semen, and a composition containing the same for treating and preventing gastrointestinal motility disorder. The extracts of the present invention have a remarkable effect of promoting gastrointestinal motility through HT3 receptor antagonism and/or HT4 receptor antagonism.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: July 1, 2014
    Assignee: Dong-A-Pharm, Co., Ltd.
    Inventors: Mi Won Son, Sang Jin Choi, Chong Hwan Cho, Nam Joon Baek, Tae Ho Lee, Jae Keol Rhee, Soon Hoe Kim, Moo Hi Yoo, Mi Rim Jin, Jin Pub Son
  • Patent number: 8530205
    Abstract: The present invention relates to a buffer composition for promoting production of calcitriol or calcifediol, and a method for producing calcitriol or calcifediol using the same. More particularly, the present invention relates to a buffer composition for promoting production of calcitriol or calcifediol comprising a metallic compound, an organic solvent, cyclodextrin, tris(hydroxymethyl)aminomethane, sodium succinate, sodium chloride, magnesium chloride, and water, and a method for producing calcitriol or calcifediol using the same. In the method for producing calcitiriol or calcifediol, the production yield of calcitriol or calcifediol is high, and the bioconversion is carried out in an enzyme reaction system instead of in a microorganism culture system. Thus, it is not required to maintain a sterile state. Also, the separation/purification following the completion of a biocatalytic reaction can be carried out in a cleaner state than the microorganism culture method.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: September 10, 2013
    Assignee: IL Dong Pharm Co., Ltd.
    Inventors: Dae-Jung Kang, Jong-Hyuk Im, Hyun-Jung Jung, Jae-Hoon Kang
  • Patent number: 8481592
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hyperlipidemia, fatty liver, diabetes and obesity comprising a sesquiterpene derivative as an active ingredient. The sesquiterpene derivatives of the present invention leads to decrease in body fat weight, visceral fat weight and total cholesterol levels, triglyceride of plasma and liver tissue, blood glucose and blood insulin levels in a fast state, finally exhibiting efficacies on prevention or treatment of hyperlipidemia, fatty liver, diabetes and obesity.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: July 9, 2013
    Assignee: Kwang Dong Pharm Co., Ltd.
    Inventors: Tae-Sun Park, Ha-Won Kim
  • Publication number: 20130039951
    Abstract: Provided is a process for preparing a solubilized and stabilized formulation of a sirolimus derivative, which comprises the steps of a dissolving a sirolimus derivative in a solvent, and bring a solution of the sirolimus derivative into contact with a water-soluble carrier to disperse the sirolimus derivative in the water-soluble carrier, and a formulation of a sirolimus derivative with improved solubility and stability as prepared by the preparation process as above.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 14, 2013
    Applicant: DONG-A PHARM. CO., LTD.
    Inventors: Soon-Hoe Kim, Mi-Won Son, Sun-Woo Jang, Sang-Kuk Park, Sang-Dug Han, Myung-Joo Kang, Kyung-Wan Ma
  • Publication number: 20130022645
    Abstract: Disclosed is an oral bisphosphonate formulation characterized by an enhanced clinical bioavailability of bisphosphonate and by the use of phytic acid and a delayed release means for releasing bisphosphonate at a site of the lower gastrointestinal tract. Having a low phytic acid content, the oral bisphosphonate formulation guarantees high safety to the patient. Moreover, the oral formulation is designed to allow the patients to take the medicament, together with food intake, at a bioavailability as high as that of an empty stomach, thus improving the convenience of drug administration for the patient. Therefore, the oral formulation is expected to provide higher therapeutic effects for osteoporosis.
    Type: Application
    Filed: October 19, 2011
    Publication date: January 24, 2013
    Applicant: DONG-A PHARM. CO., LTD.
    Inventors: Mi-Won SON, Sun-Woo JANG, Jeong-Soo KIM, Dong-Sung RYU, Wan-Sung KU
  • Patent number: 8329191
    Abstract: The present invention relates to three-branched PEG-G-CSF conjugate of general formula (1) in which the bonding ratio of three-branched polyethylene glycol (PEG) and G-CSF is 1:1 (mol/mol), wherein PEG has an average molecular weight of from 200 to 45,000 daltons; a pharmaceutical composition comprising the same, and a preparing method thereof.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: December 11, 2012
    Assignee: Dong-A-Pharm. Co., Ltd.
    Inventors: Yeong-Woo Jo, Won-Young Yoo, Hyun-Kyu Jeon, Yun-Kyu Choi, Hye-In Jang, Byong-Moon Kim, Sung-Hee Lee, Soo-Hyung Kang, Moo-Hi Yoo
  • Patent number: 8203011
    Abstract: The present invention provides a 3?,4?,5-trimethoxy flavone derivative and a pharmaceutically acceptable salt thereof, preparation thereof, and a pharmaceutical composition for the treatment and prevention of dry eye syndrome comprising the same as an active ingredient. The 3?,4?,5-trimethoxy flavone derivative and its pharmaceutically acceptable salt inhibit corneal damage through excellent stimulatory action on mucus secretion in the conjunctiva and therefore may be effective as a prophylactic or therapeutic agent for dry eye syndrome.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: June 19, 2012
    Assignee: Dong-A Pharm. Co., Ltd.
    Inventors: Seul-Min Choi, Kyung-Koo Kang, Dong-Sung Kim, Jeong-Hoon Kim, Byoung-Ok Ahn, Moo-Hi Yoo, Mi-Jeong Seo, Ju-Mi Kim, Yong-Duck Kim, Sun-Woo Jang, Yong-Sung Shon
  • Publication number: 20120129924
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hyperlipidemia, fatty liver, diabetes and obesity comprising a sesquiterpene derivative as an active ingredient. The sesquiterpene derivatives of the present invention leads to decrease in body fat weight, visceral fat weight and total cholesterol levels, triglyceride of plasma and liver tissue, blood glucose and blood insulin levels in a fast state, finally exhibiting efficacies on prevention or treatment of hyperlipidemia, fatty liver, diabetes and obesity.
    Type: Application
    Filed: October 20, 2008
    Publication date: May 24, 2012
    Applicant: KWANG DONG PHARM. CO., LTD.
    Inventors: Tae-Sun Park, Ha-Won Kim
  • Publication number: 20110306762
    Abstract: The present invention provides an acid addition salt of Udenafil, a preparation method thereof and a pharmaceutical composition comprising the same. The acid addition salt of Udenafil in which Udenafil is bonded to an organic acid selected from the group consisting of oxalic acid, benzenesulfonic acid, camphorsulfonic acid, cinnamic acid, adipic acid and cyclamic acid, has excellent solubility in an aqueous medium, water stability and crystallinity, thereby being suitably applied for a pharmaceutical composition.
    Type: Application
    Filed: February 17, 2010
    Publication date: December 15, 2011
    Applicant: Dong-A Pharm. Co., Ltd.
    Inventors: Chan-Ho Lee, Chang-Yong Shin, Seul-Min Choi, Kyung-Koo Kang, Dong-Seong Kim, Byoung-Ok Ahn, Moo-Hi Yoo
  • Publication number: 20110250279
    Abstract: This invention relates to a controlled-release composition for producing a sustained-release preparation containing udenafil, including (A) udenafil and a pharmaceutically acceptable salt, (B) a solubility modulator, (C) an adsorbent, and (D) a hydrophilic polymer. This controlled-release composition for producing a sustained-release preparation containing udenafil releases drugs constantly regardless of the pH level in the gastrointestinal tract, and thus freely controls the drug release time within the range of 3˜24 hours, and reduces the variability in the effect of drugs among individuals. Also, this composition can be produced into a sustained-release preparation which has an optimum condition for expressing the effect of drugs in the treatment of diseases including pulmonary arterial hypertension, hepatic portal vein hypertension, benign prostatic hyperplasia, and the like, which can be treated by udenafil and which requires the long-term drug administration.
    Type: Application
    Filed: December 10, 2009
    Publication date: October 13, 2011
    Applicant: Dong-A Pharm. Co., Ltd.
    Inventors: Moo-Hi Yoo, Bong-Jin Cha, Jeong-Hoon Kim, Sun-Woo Jang, Sang-Dug Han
  • Patent number: 8030315
    Abstract: The present invention provides a novel heterocyclic compound containing a beta-amino group, a method for preparing the same, and a pharmaceutical composition comprising the same heterocyclic compound or a pharmaceutically acceptable salt thereof as an active ingredient. The heterocyclic compound of the present invention exhibits excellent DPP-IV inhibitory activity and bioavailability and therefore can be useful for the prophylaxis or treatment of DPP-IV-related diseases such as diabetes or obesity.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 4, 2011
    Assignee: Dong-A Pharm. Co., Ltd.
    Inventors: Heung Jae Kim, Woo Young Kwak, Chang Yell Shin, Hadong Kim, Jong Pil Min, Kyung Jin Park, Jae Young Lee, Song-Hyen Choi, Tae Hyun Yoon, Hae-Sun Kim, Ji Myun Jang, Mi-Kyung Kim, Moon-Ho Son, Soon Hoe Kim, Moohi Yoo
  • Patent number: 7989425
    Abstract: The present invention relates to a vaccine enhancing the protective immunity to Hepatitis C virus using plasmid DNA and recombinant adenovirus, more particularly to a vaccine consisting of ? core-E1-E2 expressing DNA vaccine, nonstructural protein NS3 and NS4 expressing DNA vaccine, nonstructural protein NS5 expressing DNA vaccine and recombinant adenovirus vaccine, and method for administration of the vaccine by priming with the DNA vaccines described above and boosting with the recombinant adenovirus vaccine thereby enhancing the protective immunity to Hepatitis C virus.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: August 2, 2011
    Assignees: Genexine Inc., Postech Foundation, Dong-A Pharm. Co., Ltd., Daewood Co., Ltd., Posco
    Inventors: Young Chul Sung, Jin-Won Youn, Se-Hwan Yang, Su-Hyung Park, Chang Geun Lee
  • Publication number: 20110076247
    Abstract: Disclosed is an agent for preventing and treating diabetic peripheral neuropathy including a granulocyte colony stimulating factor (G-CSF) as an active ingredient, which is able to improve nerve conduction velocity and pain sensitivity by regenerating blood vessels in peripheral tissues and rehabilitating damaged nerve tissues.
    Type: Application
    Filed: October 29, 2010
    Publication date: March 31, 2011
    Applicant: DONG-A PHARM, CO., LTD.
    Inventors: Kyung-Soo KIM, Ji-yong Jin
  • Patent number: 7915302
    Abstract: The present invention provides novel crystalline forms D1 and D2 of [R—(R*,R*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemicalcium salt, and hydrates thereof. The crystalline forms D1 and D2 have X-ray powder diffraction peaks described in FIGS. 1 and 3, respectively. Further, the present invention provides processes for preparing the crystalline forms and pharmaceutical compositions comprising the crystalline forms. The crystalline forms can be produced on a commercial scale and exhibit excellent stability.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: March 29, 2011
    Assignee: Dong-A Pharm. Co., Ltd.
    Inventors: Moon Sung Kim, Moo Hi Yoo, Jae Keol Rhee, Yong Jik Kim, Seong Jin Park, Jun Ho Choi, Si Young Sung, Hong Gyu Lim, Dae Won Cha
  • Publication number: 20100267818
    Abstract: This invention relates to a single-liquid pharmaceutical composition for injection containing docetaxel. The composition includes (A) docetaxel and pharmaceutically acceptable salts thereof, (B) a surfactant selected from the group consisting of polysorbate, polyoxyethylene glycol ester and polyoxyethylene castor oil derivatives, (C) a solvent comprising anhydrous ethanol in a concentration range of 100 to 800 mg/ml, in an injectable solution, and (D) a pH adjuster of an amount suitable for adjusting the pH of the liquid composition to 5 or less. The composition may be directly diluted in a perfusion liquid even without the use of an intermediary dilute solution in case the composition is used for injectable preparations since the composition is in a single liquid phase. Furthermore, the composition is suitable for effective administration of docetaxel since the pharmaceutical stability of the composition is significantly improved.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 21, 2010
    Applicant: DONG-A PHARM. CO., LTD
    Inventors: Moo-Hi Yoo, Bong-Jin Cha, Jeong-Hoon Kim, Sun-Woo Jang, Dong-Han Won
  • Patent number: 7816379
    Abstract: The present invention relates to novel derivatives of oxazolidinone, a method thereof and pharmaceutical compositions comprising the derivatives for use in an antibiotic. The oxazolidinone derivatives of the present invention show inhibitory activity against a broad spectrum of bacteria and lower toxicity. The prodrugs, prepared by reacting the compound having hydroxyl group with amino acid or phosphate, have an excellent efficiency on solubility thereof against water. Further, the derivatives of the present invention may exert potent antibacterial activity versus various human and animal pathogens, including Gram-positive bacteria such as Staphylococi, Enterococci and Streptococi, anaerobic microorganisms such as Bacteroides and Clostridia, and acid-resistant microorganisms such as Mycobacterium tuberculosis and Mycobacterium avium. Accordingly, the compositions comprising the oxazolidinone are used in an antibiotic.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: October 19, 2010
    Assignee: Dong-A Pharm. Co., Ltd.
    Inventors: Jae Keol Rhee, Weon Bin Im, Chong Hwan Cho, Sung Hak Choi, Tae Ho Lee
  • Publication number: 20100210668
    Abstract: The present invention relates to a composition and a method for treating or preventing benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS) without showing the side effect, by dramatically relaxing the smooth muscle in prostate and bladder.
    Type: Application
    Filed: September 24, 2008
    Publication date: August 19, 2010
    Applicant: DONG-A PHARM. CO., LTD.
    Inventors: Seul-Min Choi, Ju-Mi Kim, Kyung-Koo Kang, Byoung-Ok Ahn, Moo-Hi Yoo