Patents by Inventor Wael Baidossi
Wael Baidossi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9334219Abstract: The present invention provides a process for the preparation of a stable polymorph III of Atovaquone exhibiting characteristic peaks (expressed in degrees 20±0.2°?) at about 6.9, 9.6, 14.1, 14.7, 17.0, 18.5, 19.1, 19.9, 20.3, 22.0, 22.6, 23.2, 24.2, 26.8, and 28.5, which comprises: (a) providing a sample of Atovaquone particles; (b) heating the sample of Atovaquone particles at a minimal temperature of between 140° C. to 160° C. depending on the particle size of the sample; and (c) cooling the sample to obtain the stable polymorphic form of Atovaquone.Type: GrantFiled: December 17, 2014Date of Patent: May 10, 2016Assignee: TARO PHARMACEUTICAL INDUSTRIES LTD.Inventors: Wael Baidossi, Terese Soudah, Rosa Cyjon
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Patent number: 9233898Abstract: The present invention is related to a novel synthetic procedure that provides a simple, safe and commercially valuable method for the preparation of 2-phenyl-1,3-propanediol. The process for the preparation of 2-phenyl-1,3-propanediol involves reducing diethyl phenylmalonate with sodium borohydride (NaBH4) in the presence of an alkali metal dihydrogen phosphate buffer or the hydrate thereof.Type: GrantFiled: September 5, 2011Date of Patent: January 12, 2016Assignee: TARO PHARMACEUTICAL INDUSTRIES LTD.Inventors: Daniella Gutman, Wael Baidossi, Sorin Bercovici, Simon Cherniak
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Publication number: 20150307431Abstract: The present invention provides a process for the preparation of a stable polymorph III of Atovaquone exhibiting characteristic peaks (expressed in degrees 20±0.2°?) at about 6.9, 9.6, 14.1, 14.7, 17.0, 18.5, 19.1, 19.9, 20.3, 22.0, 22.6, 23.2, 24.2, 26.8, and 28.5, which comprises: (a) providing a sample of Atovaquone particles; (b) heating the sample of Atovaquone particles at a minimal temperature of between 140° C. to 160° C. depending on the particle size of the sample; and (c) cooling the sample to obtain the stable polymorphic form of Atovaquone.Type: ApplicationFiled: December 17, 2014Publication date: October 29, 2015Applicant: TARO PHARMACEUTICAL INDUSTRIES LIMITEDInventors: WAEL BAIDOSSI, Terese Soudah, Rosa Cyjon
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Publication number: 20140073816Abstract: The present invention provides a process for the preparation of a stable polymorph III of Atovaquone exhibiting characteristic peaks (expressed in degrees 2?±0.2°?) at about 6.9, 9.6, 14.1, 14.7, 17.0, 18.5, 19.1, 19.9, 20.3, 22.0, 22.6, 23.2, 24.2, 26.8, and 28.5, which comprises: (a) providing a sample of Atovaquone particles; (b) heating the sample of Atovaquone particles at a minimal temperature of between 140° C. to 160° C. depending on the particle size of the sample; and (c) cooling the sample to obtain the stable polymorphic form of Atovaquone.Type: ApplicationFiled: March 14, 2012Publication date: March 13, 2014Applicant: TARO PHARMACEUTICAL INDUSTRIES LIMITEDInventors: Wael Baidossi, Terese Soudah, Rosa Cyjon
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Publication number: 20130231496Abstract: The present invention is related to a novel synthetic procedure that provides a simple, safe and commercially valuable method for the preparation of 2-phenyl-1,3-propanediol. The process for the preparation of 2-phenyl-1,3-propanediol involves reducing diethyl phenylmalonate with sodium borohydride (NaBH4) in the presence of an alkali metal dihydrogen phosphate buffer or the hydrate thereof.Type: ApplicationFiled: September 5, 2011Publication date: September 5, 2013Applicant: TARO PHARMACEUTICAL INDUSTRIES LTD.Inventors: Daniella Gutman, Wael Baidossi, Sorin Bercovici, Simon Cherniak
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Patent number: 8080662Abstract: The present invention provides a method of preparing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) by reacting an arylmethylamine of formula (3) with a 4-chloro-1H-imidazo(4,5-c)quinoline of formula (2). The present invention further provides a method of preparing an acid addition salt of formula (5) comprising the step of hydrolyzing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) with a strong acid, HX. The present invention further provides a method of preparing a 4-amino-1H-imidazo(4,5-c)quinoline of formula (1) comprising the step of treating an acid addition salt of formula (5) with a base.Type: GrantFiled: March 29, 2010Date of Patent: December 20, 2011Assignee: Taro Pharmaceuticals U.S.A., Inc.Inventors: Daniella Gutman, Wael Baidossi, Shimon Chernyak
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Publication number: 20100184984Abstract: The present invention provides a method of preparing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) by reacting an arylmethylamine of formula (3) with a 4-chloro-1H-imidazo(4,5-c)quinoline of formula (2). The present invention further provides a method of preparing an acid addition salt of formula (5) comprising the step of hydrolyzing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) with a strong acid, HX. The present invention further provides a method of preparing a 4-amino-1H-imidazo(4,5-c)quinoline of formula (1) comprising the step of treating an acid addition salt of formula (5) with a base.Type: ApplicationFiled: March 29, 2010Publication date: July 22, 2010Applicant: Taro Pharmaceuticals U.S.A.Inventors: Daniella Gutman, Wael Baidossi, Shimon Chernyak
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Patent number: 7723514Abstract: The present invention provides a method of preparing a 5H-dibenz[b,f]azepine-5-carboxamide of formula (1) wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, halogen, nitro, cyano, carboxyl, A, —CO(A), —OCO(A), —O(A), —N(A)2, —CON(A)2, and —COO(A), wherein A is selected from the group consisting of C1-C10 alkyl, C3-C10 cycloalkyl, C2-C10 alkenyl, C5-C10 cycloalkenyl, C2-C10 alkynyl, and C6-C20 aryl, wherein the two A groups of —N(A)2 and —CON(A)2 can be the same or different, and wherein R2 and R3 can together form a bond; comprising reacting a 5H-dibenz[b,f]azepine of formula (2) with a) a cyanate salt selected from the group consisting of alkali metal cyanate salts and alkaline-earth metal cyanate salts, and b) a salt of an amino compound having no N—H bonds, wherein the salt has a Ka (25° C.) of at least about 10×10?11.Type: GrantFiled: June 29, 2006Date of Patent: May 25, 2010Assignee: Taro Pharmaceuticals U.S.A., Inc.Inventors: Daniella Gutman, Wael Baidossi
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Patent number: 7687628Abstract: The present invention provides a method of preparing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) by reacting an arylmethylamine of formula (3) with a 4-chloro-1H-imidazo(4,5-c)quinoline of formula (2). The present invention further provides a method of preparing an acid addition salt of formula (5) comprising the step of hydrolyzing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) with a strong acid, HX. The present invention further provides a method of preparing a 4-amino-1H-imidazo(4,5-c)quinoline of formula (1) comprising the step of treating an acid addition salt of formula (5) with a base.Type: GrantFiled: September 30, 2004Date of Patent: March 30, 2010Assignee: Taro Pharmaceuticals U.S.A., Inc.Inventors: Daniella Gutman, Wael Baidossi, Shimon Chernyak
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Publication number: 20070010496Abstract: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.Type: ApplicationFiled: June 30, 2006Publication date: January 11, 2007Inventors: Daniella Gutman, Wael Baidossi
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Publication number: 20060241292Abstract: The present invention provides a method of preparing a 5H-dibenz[b,f]azepine-5-carboxamide of formula (1) wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, halogen, nitro, cyano, carboxyl, A, —CO(A), —OCO(A), —O(A), —N(A)2, —CON(A)2, and —COO(A), wherein A is selected from the group consisting of C1-C10 alkyl, C3-C10 cycloalkyl, C2-C10 alkenyl, C5-C10 cycloalkenyl, C2-C10 alkynyl, and C6-C20 aryl, wherein the two A groups of —N(A)2 and —CON(A)2 can be the same or different, and wherein R2 and R3 can together form a bond; comprising reacting a 5H-dibenz[b,f]azepine of formula (2) with a) a cyanate salt selected from the group consisting of alkali metal cyanate salts and alkaline-earth metal cyanate salts, and b) a salt of an amino compound having no N—H bonds, wherein the salt has a Ka(25° C.) of at least about 10×10?11.Type: ApplicationFiled: June 29, 2006Publication date: October 26, 2006Applicant: TARO PHARMACEUTICALS USA, INCInventors: Daniella Gutman, Wael Baidossi
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Patent number: 7091339Abstract: The present invention provides a method of preparing a 5H-dibenz[b,f]azepine-5-carboxamide of formula (1) wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, halogen, nitro, cyano, carboxyl, A, —CO(A), —OCO(A), —O(A), —N(A)2, —CON(A)2, and —COO(A), wherein A is selected from the group consisting of C1–C10 alkyl, C3–C10 cycloalkyl, C2–C10 alkenyl, C5–C10 cycloalkenyl, C2–C10 alkynyl, and C6–C20 aryl, wherein the two A groups of —N(A)2 and —CON(A)2 can be the same or different, and wherein R2 and R3 can together form a bond; comprising reacting a 5H-dibenz[b,f]azepine of formula (2) with a) a cyanate salt selected from the group consisting of alkali metal cyanate salts and alkaline-earth metal cyanate salts, and b) a salt of an amino compound having no N—H bonds, wherein the salt has a Ka (25° C.) of at least about 10×10?11.Type: GrantFiled: June 13, 2003Date of Patent: August 15, 2006Assignee: Taro Pharmaceuticals USA, Inc.Inventors: Daniella Gutman, Wael Baidossi
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Publication number: 20050085500Abstract: The present invention provides a method of preparing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) by reacting an arylmethylamine of formula (3) with a 4-chloro-1H-imidazo(4,5-c)quinoline of formula (2). The present invention further provides a method of preparing an acid addition salt of formula (5) comprising the step of hydrolyzing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) with a strong acid, HX. The present invention further provides a method of preparing a 4-amino-1H-imidazo(4,5-c)quinoline of formula (1) comprising the step of treating an acid addition salt of formula (5) with a base.Type: ApplicationFiled: September 30, 2004Publication date: April 21, 2005Inventors: Daniella Gutman, Wael Baidossi, Shimon Chernyak
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Publication number: 20040044200Abstract: The present invention provides a method of preparing a 5H-dibenz[b,f]azepine-5-carboxamide of formula (1) 1Type: ApplicationFiled: June 13, 2003Publication date: March 4, 2004Inventors: Daniella Gutman, Wael Baidossi