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Olanexidine, オラネキシジングルコン酸塩

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STR1

Olanexidine Gluconate

OPB-2045G, Gluconate olanexidin,  Olanedine,  OPB-2045,  OPB 2045G, 

(Olanedine®)Approved in Japan PMDA 2015-07-03, Olanedine® by Otsuka

Image result for JAPAN ANIMATED FLAG

A disinfectant uesd to prevent of postoperative bacterial infections.

OLANEXIDINE Structure

CAS .146510-36-3(Olanexidine free form), 

Imidodicarbonimidic diamide, N-((3,4-dichlorophenyl)methyl)-N’-octyl

C17H27Cl2N5
Formula Weight: 372.341

STR1

CAS 799787-53-4(Olanexidine Gluconate)

568.49
Formula C17H27Cl2N5 ● C6H12O7

1-(3,4-Dichlorobenzyl)-5-octylbiguanide mono-D-gluconate

オラネキシジングルコン酸塩
Olanexidine Gluconate

C17H27Cl2N5▪C6H12O7 : 568.49
[799787-53-4]

Indication:Bacterial infection

Otsuka (Originator)

Image result for otsuka logo

  • Marketed Bacterial infections

Image result for Olanedine®

Most Recent Events

  • 16 Sep 2015 Launched for Bacterial infections (Prevention) in Japan (Topical)
  • 03 Jul 2015 Registered for Bacterial infections (Prevention) in Japan (Topical) – First global approval
  • 30 Sep 2014 Preregistration for Bacterial infections (Prevention) in Japan (Topical)
  • Image result for JAPAN ANIMATED FLAG

SEE ALSO

Image result for Olanexidine

Olanexidine hydrochloride [USAN]

146509-94-6 HCL
RN: 218282-71-4 HCL HYDRATE
UNII: R296398ALN

Molecular Formula, C17-H27-Cl2-N5.Cl-H.1/2H2-O

Molecular Weight, 835.6192

Imidodicarbonimidic diamide, N-((3,4-dichlorophenyl)methyl)-N’-octyl-, monohydrochloride, hydrate (2:1)

INTRODUCTION

Olanexidine gluconate was approved by Pharmaceuticals and Medical Devices Agency of Japan (PMDA) on Jul 03, 2015. It was developed and marketed as Olanedine® by Otsuka in Japan.

Olanexidine gluconate is an antiseptic/disinfectant compound with potent bactericidal activity against Gram-negative and Gram-positive bacteria, for use in preparing patients for surgery and preventing of postoperative bacterial infections.

Olanedine® is available as topical solution (1.5%), containing 3 g/200 mL, 0.15 g/10 mL and 0.375 g/25 mL, and the recommendation is applying appropriate amount of the drug.

PRODUCT PATENT

WO 2004105745

Kazuyoshi Miyata, Yasuhide Inoue, Akifumi Hagi, Motoya Kikuchi, Hitoshi Ohno, Kinji Hashimoto, Kinue Ohguro, Tetsuya Sato,Hidetsugu Tsubouchi, Hiroshi Ishikawa,Takashi Okamura, Koushi Iwata,

Otsuka Pharmaceutical Co., Ltd., Otsuka Pharmaceutical Factory, Inc.

SYNTHESIS

PATENT

CN1065453A

http://www.google.com.au/patents/CN1065453A?cl=en

PATENT

WO2008026757A1

https://google.com/patents/WO2008026757A1?cl=en

Example 1: l-cyano-3-n-octylguanidine

A 7.00-kg quantity of Compound (4) (54.16 mol) was dissolved in 105 liters of ethyl acetate, and the resulting mixture was cooled to 5°C or below. A 2.66-kg quantity of concentrated sulfuric acid (27.12 mol) was added thereto dropwise at a temperature of 4O0C or below while stirring. To the thus- obtained suspension of 1/2 sulfate of Compound (4) was added 5.06 kg of sodium dicyanamide (56.83 mol), and the resulting suspension was heated under reflux for 7 hours. The reaction solution was cooled to 400C or below, and 70 liters of water was added thereto. Subsequently, the resulting solution was heated to 80 to 900C (internal temperature) to distill the ethyl acetate off. The remaining liquid was cooled to 400C or below, and 70 liters of toluene was then added thereto, followed by the extraction of 1-cyano — 3-n-octyl guanidine at about 500C. The extracted toluene layer was washed with 35 liters of water at about 500C and cooled to 100C or below, followed by stirring for about 30 minutes. The resulting precipitated crystals were separated and washed with 7 liters of toluene. The resulting crystals were dried at 400C for 7.5 hours, yielding l-cyano-3-n- octylguanidine. 2007/067107

-16-

Yield: 9.11 kg (The yield was 85.7% based on the Compound(4).) White crystals having a melting point of 69 to 740C (no clear melting point was observed)

IR(KBr) spectrum: 3439, 3296, 2916, 2164, 1659, 1556, 1160, 718, and 572 cm“1

Thermogravimetric measurement/differential thermal analysis: 73.5°C (weak), an endothermic peak at 77.50C

1H-NMR(CDCl3) spectrum: 0.88 ppm (t, J = 6.6 Hz, 3H), 1.20-1.38 ppm (m, 10H), 1.43-1.62 ppm (m, 2H), 3.17 ppm (dd, J = 6.9 Hz, J = 6.0 Hz, 2H), 5.60-5.70 ppm (bs, 2H), 5.80-5.95 ppm (bs, IH)

Reference Example 2: Acidolysis of 1- (3,4-dichlorobenzyl) -5- octylbiguanide dihydrochloride

A 1-g quantity of 1- (3, 4-dichlorobenzyl) -5-octyl biguanide dihydrochloride was dissolved in 15 ml of 10% ethanol, followed by refluxing for 5 hours. HPLC analysis was conducted under the conditions described below.

The yield of 1-[N- (3,4-dichlorobenzyl) carbamoyl-3- octyl]guanidine (holding time: 9.84 minutes) was 0.91%, and the yield of 1- (N-octyl-carbamoyl) -3- (3, 4-dichlorobenzyl) guanidine

(holding time: 10.54 minutes) was 0.22%.

HPLC analysis conditions:

Column: YMC AM302 4.6 mm I. D. x 150 mm

Eluate: MeCN/0.05 M aqueous solution of sodium 1- octanesulfonate/acetic acid = 700/300/1

Detector: UV 254 nm

The physical property values of the resulting 1-[N- (3,4- dichlorobenzyl) carbamoyl-3-octyl] guanidine were as follows: NMR (DMSO-de) δ: 0.86 (3H, t, J = 6.0 Hz), 1.07-1.35 (1OH, m) , 1.35-1.49 (2H, m) , 2.95-3.15 (2H, m) , 4.12 (2H, d, J = 6.3 Hz), 6.78-7.40 (4H, m) , 7.23 (IH, dd, J = 2.1 Hz, J = 8.4 Hz), 7.46 (IH, d, J = 2.1 Hz), 7.54 (IH, d, J = 8.4 Hz)

The physical property values of the resulting 1- (N-octyl- carbamoyl) -3- (3, 4-dichlorobenzyl) guanidine were as follows: NMR (DMSO-d6) δ: 0.85 (3H, t, J = 6.6 Hz), 1.02-1.40 (12H, m) , 2.89-2.95 (2H, m) , 4.33 (2H, bs) , 5.76-7.00 (4H, m) , 7.28 (IH, dd, J = 2.1 Hz, J = 8.1 Hz), 7.52 (IH, d, J = 2.1 Hz), 7.58 (IH, d, J = 8.1 Hz)

Example 1: 1- (3, 4-dichlorobenzyl) -5-octylbiguanide monohydrochloride 1/2 hydrate

A 9.82-g quantity of Compound (2) (0.05 mol) and 10.63 g of 3, 4-dichlorobenzylamine (0.05 mol) were added to 49 ml of butyl acetate, followed by refluxing for 6 hours. The reaction solution was concentrated under reduced pressure, and a mixture of 12 ml of water and 47 ml of isopropyl alcohol was added and dissolved into the remainder. To the thus-obtained solution was added, dropwise, 10.13 g of concentrated hydrochloric acid. The resulting mixture was stirred at 28 to 300C for 30 minutes, and the precipitated crystals were then filtered out. The thus- obtained crystals were washed with a small amount of isopropyl alcohol, yielding 23.42 g of (non-dried) 1- (3, 4-dichlorobenzyl) – 5-octylbiguanide dihydrochloride. The resulting crystals were suspended in 167 ml of water without drying, the suspension was then stirred at 25 to 27°C for 2 hours, followed by separation of the crystals by filtration. The thus-obtained crystals were washed with a small amount of water and dried at 400C for 20 hours, yielding 17.05 g of 1- (3, 4-dichlorobenzyl) -5-octyl biguanide monohydrochloride 1/2 hydrate having a purity of 99.9% at a yield of 81.6%.

Example 2 : 1- (3, 4-dichlorobenzyl) -5-octylbiguanide dihydrochloride

A 100-g quantity of Compound (4) (0.774 mol) was dissolved in 1 liter of n-butyl acetate, and 37.6 g of concentrated sulfuric acid (0.383 mol) was added thereto while stirring. To the thus-obtained suspension of 1/2 sulfate of Compound (4) was added 68.9 g of sodium dicyanamide (0.774 mol), 7107

-18- and the resulting suspension was heated under reflux for 3 hours. The reaction solution was cooled to about 200C, and the organic layer thereof was sequentially washed with about 500 ml each of (i) 5% hydrochloric acid, (ii) 5% aqueous caustic soda solution, (iii) 5% aqueous sodium bicarbonate solution, and (iv) water.

To the thus-obtained n-butyl acetate solution of Compound (2) were added 118.5 g of Compound (3) (0.673 mol) and then 58.4 ml of concentrated hydrochloric acid while stirring. The reaction solution was heated, and about 800 ml of n-butyl acetate was distilled off under atmospheric pressure (ordinary pressure) , followed by heating the reaction solution under reflux for 3.5 hours . Subsequently, the reaction solution was cooled to about 400C, and 900 ml of isopropanol, 100 ml of water, and 134 ml of concentrated hydrochloric acid were added thereto. The mixture was stirred at 60 to 70°C for 1 hour and cooled to 100C or below and the precipitated crystals were then separated. The resulting crystals were washed with 200 ml of isopropanol and dried at 6O0C, yielding 1- (3, 4-dichlorobenzyl) -5-octylbiguanide dihydrochloride. Yield: 243.8 g (The yield was 81.3% based on the Compound (3).) Melting point: 228.90C IR(KBr) spectrum: 2920, 1682, 1634, 1337, 1035, 820, and 640 cm“1

PATENT

WO2004105745A1

PATENT

WO2009142715A1

STR1

PATENT

https://www.google.com/patents/US8334248

Olanexidine is a compound with high bactericidal activity having the chemical name 1-(3,4-dichlorobenzyl)-5-octylbiguanide. Research has been carried out into bactericides containing, olanexidine hydrochloride as an active ingredient (see Japanese Patent No. 2662343, etc.).

Olanexidine has very poor solubility in water, and hitherto known salts of olanexidine are also poorly soluble in water. For example, the solubility at 0° C. of olanexidine hydrochloride in water has been measured to be less than 0.05% (W/V), and the solubility of free olanexidine is a further order of magnitude less than this. Consequently, sufficient bactericidal activity cannot be expected of an aqueous solution merely having olanexidine dissolved therein, and moreover, depending on the conditions the olanexidine may precipitate out.

In the case of making an aqueous preparation of olanexidine in particular, to make the concentration of the olanexidine sufficient for exhibiting effective bactericidal activity, and to reduce the possibility of the olanexidine precipitating out, it has thus been considered necessary to use a dissolution aid such as a surfactant.

EXAMPLE 1 Preparation of an Aqueous Solution Aqueous Solution 1

20.9 g (50 mmol) of olanexidine hydrochloride hemihydrate was added to 250 mL of a 1 N aqueous sodium hydroxide solution, and the suspension was stirred for 1.5 hours at room temperature (25° C.). The solid was filtered off, and washed with water. The solid obtained was further suspended in 250 mL of purified water, the suspension was stirred for 5 minutes at room temperature, and the solid was filtered off, and washed with water. This operation was carried out once more to remove sodium chloride formed. The solid obtained (free olanexidine) was put into purified water in which 8.9 g (50 mmol) of gluconolactone had been dissolved, and the mixture was stirred at room temperature until the solid dissolved, and then purified water was further added to give a total volume of 300 mL. The concentration of olanexidine in the aqueous solution obtained was measured by using high performance liquid chromatography to be 6% in terms of free olanexidine.

This aqueous solution was still transparent and colorless even after being left for several months at room temperature.

CLIP

http://dmd.aspetjournals.org/content/28/12/1417/F9.expansion.html

Image result for Olanexidine

Image result for Olanexidine

REFERENCES

http://www.otsukakj.jp/en/news/photo/photo-14423716650.pdf

Patent ID Date Patent Title
US8979785 2015-03-17 Fluid application device and method
US8911771 2014-12-16 Fluid application device and method
US8858484 2014-10-14 Fluid application device and method
US2013330114 2013-12-12 FLUID APPLICATION DEVICE AND METHOD
US2012095254 2012-04-19 METHOD AND APPARATUS FOR PREPARING A SOLUTION OF A SHEAR SENSITIVE MATERIAL
US7868207 2011-01-11 PROCESS FOR PRODUCING 1-(3, 4-DICHLOROBENZYL)-5-OCTYLBIGUANIDE OR A SALT THEREOF
US2010331421 2010-12-30 DISINFECTANT AND/OR BACTERICIDAL AQUEOUS COMPOSITIONS
US2010331423 2010-12-30 AQUEOUS SOLUTION OF OLANEXIDINE, METHOD OF PREPARING THE AQUEOUS SOLUTION, AND DISINFECTANT
US7829518 2010-11-09 Aqueous solution of olanexidine, method of preparing the aqueous solution, and disinfectant
US7825080 2010-11-02 Aqueous solution of olanexidine, method of preparing the aqueous solution, and disinfectant
Patent ID Date Patent Title
US7622469 2009-11-24 2, 4-diamino-1, 3, 5-triazine derivatives
US2009287021 2009-11-19 METHOD AND APPARATUS FOR PREPARING A SOLUTION OF A SHEAR SENSITIVE MATERIAL
US2007053942 2007-03-08 Disinfectant and/or bactericidal aqueous compositions
EP0507317 1997-01-15 BIGUANIDE DERIVATIVES, MANUFACTURING METHOD THEREOF, AND DISINFECTANTS CONTAINING THE DERIVATIVES
EP0507317A2 * Apr 3, 1992 Oct 7, 1992 Otsuka Pharmaceutical Co., Ltd. Biguanide derivatives, manufacturing method thereof, and disinfectants containing the derivatives
EP1634589A1 * May 25, 2004 Mar 15, 2006 Otsuka Pharmaceutical Co., Ltd. Aqueous olanexidine solution, method of preparing the same, and disinfectant
Reference
1 * TSUBOUCHI H ET AL: “Synthesis and Structure-Activity Relationships of Novel Antiseptics” BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, OXFORD, GB, vol. 7, no. 13, 8 July 1997 (1997-07-08), pages 1721-1724, XP004136287 ISSN: 0960-894X

//////////Olanexidine Gluconate, OPB-2045G, (Olanedine®, Approved, japan 2015-07-03, Olanedine,  Otsuka, PMDA, Olanexidine, オラネキシジングルコン酸塩 , Gluconate olanexidin,  Olanedine,  OPB-2045,  OPB 2045G, JAPAN 2015

CCCCCCCCN=C(N)NC(=NCC1=CC(=C(C=C1)Cl)Cl)N

Clc1ccc(CNC(=N)NC(=N)NCCCCCCCC)cc1Cl.O=C(O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO


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DR ANTHONY CRASTO

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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 29 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 29 year tenure till date Aug 2016, Around 30 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 25 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 13 lakh plus views on New Drug Approvals Blog in 212 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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