Patents Assigned to Portela, C.A., S.A.
  • Patent number: 10912781
    Abstract: A pharmaceutical composition comprising licarbazepine acetate, especially eslicarbazepine acetate, in combination with suitable excipients, in particular a binder, and a disintegrant. Also disclosed is a granulation process, especially a wet granulation process, for making the pharmaceutical composition.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: February 9, 2021
    Assignee: BIAL-Portela & C.A., S.A.
    Inventors: Teöfilo Cardoso de Vasconcelos, Ricardo Jorge dos Santos Lima, Rui Cerdeira de Campos Costa
  • Publication number: 20140343043
    Abstract: A pharmaceutical composition comprising licarbazepine acetate, especially eslicarbazepine acetate, in combination with suitable excipients, in particular a binder, and a disintegrant. Also disclosed is a granulation process, especially a wet granulation process, for making the pharmaceutical composition.
    Type: Application
    Filed: December 17, 2013
    Publication date: November 20, 2014
    Applicant: BIAL - PORTELA & C.A., S.A.
    Inventors: Teófilo Cardoso de Vasconcelos, Ricardo Jorge dos Santos Lima, Rui Cerdeira de Campos Costa
  • Patent number: 8859815
    Abstract: A diamine of formula (I) is described in which A is hydrogen or a saturated or unsaturated C1-C20 alkyl group or an aryl group; B is a substituted or unsubstituted C1-C20 alkyl, cycloalkyl, alkaryl, alkaryl or aryl group or an alkylamino group and at least one of X1, X2, Y1, Y2 or Z is a C1-C10 alkyl, cycloalkyl, alkaryl, aralkyl or alkoxy substituting group. The chiral diamine may be used to prepare catalysts suitable for use in transfer hydrogenation reactions.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 14, 2014
    Assignee: Bial-Portela & C.A., S.A.
    Inventors: Beatriz Dominguez, Antonio Zanotti-Gerosa, Gabriela Alexandra Grasa, Jonathan Alan Medlock
  • Patent number: 8710239
    Abstract: A process for preparing the S or R enantiomer of a compound of formula A, the process comprising subjecting a compound of formula B to asymmetric hydrogenation in the presence of a chiral catalyst and a source of hydrogen, wherein X is CH2, oxygen or sulphur; R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, alkyloxy, hydroxy, nitro, alkylcarbonylamino, alkylamino or dialkylamino group; and R4 is alkyl or aryl, wherein the term alkyl means hydrocarbon chains, straight or branched, containing from one to six carbon atoms, optionally substituted by aryl, alkoxy, halogen, alkoxycarbonyl or hydroxycarbonyl groups; the term aryl means a phenyl or naphthyl group, optionally substituted by alkyloxy, halogen or nitro group; and the term halogen means fluorine, chlorine, bromine or iodine.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: April 29, 2014
    Assignee: Bial—Portela & C.A., S.A.
    Inventors: Alexander Beliaev, David Alexander Learmonth
  • Patent number: 8546571
    Abstract: A process for preparing the S or R enantiomer of a compound of formula A, the process comprising subjecting a compound of formula B to asymmetric hydrogenation in the presence of a chiral catalyst and a source of hydrogen, wherein: X is CH2, oxygen or sulphur; R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, alkyloxy, hydroxy, nitro, alkylcarbonylamino, alkylamino or dialkylamino group; and R4 is alkyl or aryl, wherein: the term alkyl means hydrocarbon chains, straight or branched, containing from one to six carbon atoms, optionally substituted by aryl, alkoxy, halogen, alkoxycarbonyl or hydroxycarbonyl groups; the term aryl means a phenyl or naphthyl group, optionally substituted by alkyloxy, halogen or nitro group; and the term halogen means fluorine, chlorine, bromine or iodine.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: October 1, 2013
    Assignee: BIAL—Portela & C.A., S.A.
    Inventors: David Alexander Learmonth, Antonio Zanotti-Gerosa, Gabriela Alexandra Grasa, Alexander Beliaev
  • Publication number: 20130150348
    Abstract: A pharmaceutical composition comprising licarbazepine acetate, especially eslicarbazepine acetate, in combination with suitable excipients, in particular a binder, and a disintegrant. Also disclosed is a granulation process, especially a wet granulation process, for making the pharmaceutical composition.
    Type: Application
    Filed: January 30, 2013
    Publication date: June 13, 2013
    Applicant: BIAL - PORTELA & C.A., S.A.
    Inventor: BIAL - PORTELA & C.A., S.A.
  • Publication number: 20130041146
    Abstract: A process for preparing (S)-(+)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide or (R)-(?)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide, by reduction of oxcarbazepine in the presence of a catalyst and a hydride source is disclosed. The catalyst is prepared from a combination of [RuX2(L)]2 wherein X is chlorine, bromine or iodine, and L is an aryl or aryl-aliphatic ligand, with a ligand of formula (A) or formula (B): wherein R1 is chosen from C1-6 alkoxy and C1-6 alkyl, n is a number from 0 to 5, and when n is a number from 2 to 5, R1 can be the same or different, and R2 is alkyl, substituted alkyl, aryl, substituted aryl, alkaryl or substituted alkaryl. The hydride source is either NR3R4R5 and formic acid, [R3R4R5NH][OOCH] and optionally formic acid, or [M][OOCH]x and formic acid, wherein R3, R4 and R5 are C1-6 alkyl, M is an alkali metal or alkaline earth metal and x is 1 or 2. A pH from 6.5 to 8 is maintained during the process.
    Type: Application
    Filed: October 15, 2012
    Publication date: February 14, 2013
    Applicant: BIAL - PORTELA & C.A., S.A.
    Inventor: BIAL - PORTELA & C.A., S.A.
  • Patent number: 8372431
    Abstract: A pharmaceutical composition comprising licarbazepine acetate, especially eslicarbazepine acetate, in combination with suitable excipients, in particular a binder, and a disintegrant. Also disclosed is a granulation process, especially a wet granulation process, for making the pharmaceutical composition.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: February 12, 2013
    Assignee: BIAL-Portela & C.A., S.A.
    Inventors: Teófilo Cardoso de Vasconcelos, Ricardo Jorge dos Santos Lima, Rui Cerdeira de Campos Costa
  • Patent number: 8367821
    Abstract: A process for preparing a compound of the formula IA or IB: wherein R is alkyl, aminoalkyl, halogenalkyl, aralkyl, cycloalkyl, cycloalkylalkyl, alkoxy, phenyl or substituted phenyl or pyridyl group; the term alkyl means carbon chain, straight or branched, containing from 1 to 18 carbon atoms; the term halogen represents fluorine, chlorine, bromine or iodine; the term cycloalkyl represents a saturated alicyclic group with 3 to 6 carbon atoms; the term aryl represents unsubstituted phenyl group or phenyl substituted by alkoxy, halogen or nitro group, the process comprising asymmetric hydrogenation of a compound of the formula II: wherein R has the same meanings as above, using a chiral catalyst and a source of hydrogen.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: February 5, 2013
    Assignee: BIAL—Portela & C.A., S.A.
    Inventors: Bing Yu, Wenge Li, David Alexander Learmonth
  • Patent number: 8158666
    Abstract: A process for making (R)-5-(2-aminoethyl)-1-(6,8-difluorochroman-3-yl)-1,3-dihydroimidazole-2-thione and pharmaceutically acceptable salts thereof, and for making intermediates useful in the formation of said compound.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 17, 2012
    Assignee: Bial-Portela & C.A., S.A.
    Inventors: Patrício Manuel Vieira Araújo Soares Da Silva, Alexander Beliaev, David Alexander Learmonth
  • Patent number: 7820813
    Abstract: An efficient and high-yielding method for the preparation of optically pure (S)-(+)-10,11 -dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide and (R)-(?)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide by resolution of racemic (±)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide using a tartaric acid anhydride.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: October 26, 2010
    Assignee: Portela & C.A., S.A.
    Inventor: David Alexander Learmonth
  • Publication number: 20080139807
    Abstract: A process for the preparation of 10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (1) by ring opening of 11a,10b-dihydro-6H-dibenz/b,f/oxireno[d]azepine-6-carboxamide (5), characterised in that the ring opening is carried out under conditions of elevated pressure.
    Type: Application
    Filed: January 13, 2006
    Publication date: June 12, 2008
    Applicant: PORTELA & C.A.,S.A.
    Inventors: David Alexander Learmonth, Gunter Weingartner, Matthias Kraemer
  • Patent number: 7259271
    Abstract: Compounds of formula I: where R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, alkylaryl, alkyloxy, hydroxy, nitro, amino, alkylcarbonylamino, alkylamino or dialkylamino group; R4 signifies hydrogen, alkyl or alkylaryl group; X is CH2, O or S, and n is 1, 2 or 3, with the proviso that if X is CH2, n is not 1, and a method for their preparation. The compounds have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: August 21, 2007
    Assignee: Portela & C.A., S.A.
    Inventors: David Alexander Learmonth, Patricio Manuel Viera Araújo Soares da Silva, Alexander Beliaev
  • Patent number: 7241886
    Abstract: A method for the preparation of 10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide and 10,11-dihydro-10-oxo-5H-dibenz/b,f/azepine-5-carboxamide from carbamazepine via a three-step process involving (i) epoxidation of carbamazepine; (ii) ring-opening of the resulting epoxide and (iii) oxidation of the resulting alcohol
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: July 10, 2007
    Assignee: Portela & C.A., S.A.
    Inventor: David Alexander Learmonth
  • Patent number: 7189846
    Abstract: A high-yielding method and a useful intermediate, 10-chloro-10,11-dihydro-5H-dibenz/b,f/azepine-5-carboxamide (VII) is disclosed. Also disclosed are methods for the racemization of optically pure or optically enriched mixtures of (S)-(+)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (I) and (R)-(?)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (II) to racemic (±)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide (III).
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: March 13, 2007
    Assignee: Portela & C.A., S.A.
    Inventor: David Alexander Learmonth
  • Publication number: 20070015730
    Abstract: Compounds of formula I: where R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, alkylaryl, alkyloxy, hydroxy, nitro, amino, alkylcarbonylamino, alkylamino or dialkylamino group; R4 signifies hydrogen, alkyl or alkylaryl group; X is CH2, O or S, and n is 1, 2 or 3, with the proviso that if X is CH2, n is not 1, and a method for their preparation. The compounds have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure.
    Type: Application
    Filed: September 20, 2006
    Publication date: January 18, 2007
    Applicant: PORTELA & C.A., S.A.
    Inventors: David Learmonth, Patricio Manuel Viera Araujo Soares da Silva, Alexander Beliaev
  • Patent number: 7125904
    Abstract: Compounds of formula I: where R1, R2 and R3 are the same or different and signify hydrogens, halogens, alkyl, alkylaryl, alkyloxy, hydroxy, nitro, amino, alkylcarbonylamino, alkylamino or dialkylamino group; R4 signifies hydrogen, alkyl or alkylaryl group; X is CH2, O or S, and n is 1, 2 or 3, with the proviso that if X is CH2, n is not 1, and a method for their preparation. The compounds have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: October 24, 2006
    Assignee: Portela & C.A., S.A.
    Inventors: David Alexander Learmonth, Patricio Manuel Viera Araújo Soares da Silva, Alexander Beliaev
  • Patent number: 7119197
    Abstract: An efficient and high-yielding method for the preparation of optically pure (S)-(+) -10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide and (R)-(?)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide by resolution of racemic (±)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide using a tartaric acid anhydride.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: October 10, 2006
    Assignee: Portela & C.A., S.A.
    Inventor: David Alexander Learmonth
  • Patent number: 7005553
    Abstract: A method for the regioselective ortho-directed nitration of phenolic compounds useful for the preparation of ortho-nitro-phenols according to formula (I) is described.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: February 28, 2006
    Assignee: Portela, C.A., S.A.
    Inventor: David Alexander Learmonth
  • Publication number: 20040142996
    Abstract: Compounds of formula I: t,0010
    Type: Application
    Filed: October 8, 2003
    Publication date: July 22, 2004
    Applicant: Portela & C.A., S.A.
    Inventors: David Alexander Learmonth, Patricio Manuel Viera Araujo Soares da Silva, Alexander Beliaev