Patent number: 6593300
Abstract: The invention relates to a new (3R)-3-amino-4-carboxybutyraldehyde derivatives of general formula(I)
wherein X represents a C1-4 alkyloxycarbonyl, an optionally substituted phenyl-(C1-2 alkyloxy)-carbonyl, a C1-4 alkylcarbonyl or an optionally substituted phenyl-(C1-3 alkyl)-carbonyl group, n represents 1 or 0, Y represents, in the case when n=1, a tetrapeptide of general formula Y4-Y3-Y2-Y1, a tripeptide of general formula Y3-Y2-Y1 or a dipeptide of general formula Y2-Y1 or an amino acid residue of general formula Y1, or in the case when n=0, an &agr;-hydroxyacyl-tripeptide of general formula Q4-Y3-Y2-Y1, an &agr;-hydroxyacyl-dipeptide of general formula Q3-Y2-Y1 or an &agr;-hydroxyacyl-aminoacyl residue of general formula Q2-Y1; wherein Y1-Y4 represent a residue selected from the group of the following L- or D-amino acids: alanine, alloisoleucine, cyclohexyl-glycine, phenyl-alanine, glutamine, histidine, isoleucine, leucine, lysine, methionine, pipecolic acid, proline, tyrosi
Type:
Grant
Filed:
February 7, 2000
Date of Patent:
July 15, 2003
Assignee:
Gyogyszerkutato Intezet Kft.
Inventors:
Sandor Bajusz, Iren Veghelyi, Klara Nemeth, Eva Barabas, Attila Juhasz, Jozsef Lango, Emilia Lavich, Zsuzsanna Mohai, Imre Moravcsik, Zsuzsanna Taschler, Gabor Toth
Patent number: 5760235
Abstract: This invention relates to new peptide derivatives of the general formula (I) A-Xaa-Arg-H, wherein A represents a D- or L-isochroman-1-carbonyl, D- or L-isochroman-3-carbonyl group, furthermore an acyl group of the general formula: D- or DL-A'--CH(OH)--CO, wherein A' represents a phenyl, benzyl, 1-naphthyl, 1-naphthylmethyl, 2-naphthyl, 2-naphthylmethyl, 9-fluorenyl, benzhydryl, cyclohexyl, cyclohexylmethyl, 2-pyridyl, 3-pyridyl or 4-pyridyl group, and Xaa represents an L-prolyl or an L-pipecolinic acid residue, and Arg stands for an L-arginine residue, their acid addition salts formed with an organic or inorganic acid and pharmaceutical compositions containing the same. Furthermore the invention relates to a process for preparing them. The compounds of the invention have valuable therapeutic, particularly anticoagulant, properties.
Type:
Grant
Filed:
October 23, 1996
Date of Patent:
June 2, 1998
Assignee:
Gyogyszerkutato Intezet Kft.
Inventors:
Sandor Bajusz, Daniel Bagdy, Eva Barabas, Andras Feher, Gabriella Szabo, Gyorgyne Szell, Belane Veghelyi, Gyula Horvath, Attila Juhasz, Janosne Lavich, Laszlone Mohai, Imre Moravcsik, Gaborne Szeker, Istvan Pallagi, Katalin Palne Aranyosi