The synthesis of the heptacosapeptide amide with the primary structure of Human-secretin is described. For this purpose 7 fragments were designed, i.e. H-Gly-Leu-Val-NH2 [25-27b], Z-Arg(Z2)-Leu-Leu-Gln-OH [21-24], Z-Arg(Z2)-Leu-Gln-OH[18-20], Z-Arg(Z2)-Glu(OtBu)-Gly-Ala-OH [14-17], Z-Arg(Z2)-Leu-OH [12-13], Z-Thr(tBu)-Ser(tBu)-Glu(OtBu)-Leu-Ser(tBu)-OH [7-11], Adoc-His(Adoc)-Ser(tBu)-Asp(OtBu)-Gly-Thr(tBu)-Phe-OH [1-6]; these fragments were consequently assembled to the overall protected total sequence using the Wunsch/Weygand-method with dicyclohexylcarbodiimide. After deprotection by exposure to trifluoroacetic acid in presence of 1,2-ethanedithiol and water as scavenger, the isolated crude product was purified by column chromatography on CM-Sepharose, fast flow. This synthetized Human-secretin showed the full biological activity in comparison to Porcine-secretin.
The synthesis of the heptacosapeptide amide with the primary structure of Human-secretin is described. For this purpose 7 fragments were designed, i.e. H-Gly-Leu-Val-NH2 [25-27b], Z-Arg(Z2)-Leu-Leu-Gln-OH [21-24], Z-Arg(Z2)-Leu-Gln-OH[18-20], Z-Arg(Z2)-Glu(OtBu)-Gly-Ala-OH [14-17], Z-Arg(Z2)-Leu-OH [12-13], Z-Thr(tBu)-Ser(tBu)-Glu(OtBu)-Leu-Ser(tBu)-OH [7-11], Adoc-His(Adoc)-Ser(tBu)-Asp(OtBu)-Gly-Thr(tBu)-Phe-OH [1-6]; these fragments were consequently assembled to the overall protected total sequence using the Wunsch/Weygand-method with dicyclohexylcarbodiimide. After deprotection by exposure to trifluoroacetic acid in presence of 1,2-ethanedithiol and water as scavenger, the isolated crude product was purified by column chromatography on CM-Sepharose, fast flow. This synthetized Human-secretin showed the full biological activity in comparison to Porcine-secretin.
[EN] CYTOTOXIC BIS-BENZODIAZEPINE DERIVATIVES AND CONJUGATES THEREOF WITH CELL-BINDING AGENTS FOR INHIBITING ABNORMAL CELL GROWTH OR FOR TREATING PROLIFERATIVE DISEASES<br/>[FR] DÉRIVÉS DE BIS-BENZODIAZÉPINE CYTOTOXIQUES ET LEURS CONJUGUÉS AVEC DES AGENTS DE LIAISON À UNE CELLULE POUR INHIBER LA CROISSANCE CELLULAIRE ANORMALE OU POUR TRAITER DES MALADIES PROLIFÉRATIVES
申请人:IMMUNOGEN INC
公开号:WO2020205564A1
公开(公告)日:2020-10-08
The invention relates to benzodiazepine derivatives with antiproliferative activity and more specifically to benzodiazepine compounds of formulae (I), (II), (TI) and (T2). The invention also provides conjugates of the benzodiazepine compounds linked to a cell-binding agent. The invention further provides compositions and methods for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the compounds or conjugates of the invention.
Tic disorders can be improved by administering theanine, an amino acid that crosses the blood-brain barrier, or a dipeptide consisting of theanine and a different amino acid. In addition, these compositions can be added to foods and drinks or pharmaceuticals.
This invention relates to cyclic peptide derivatives which are useful anticoagulant agents.
本发明涉及环肽衍生物,其是有用的抗凝剂。
Neue N-Acyldipeptide und deren Verwendung
申请人:DEGUSSA AG
公开号:EP0466030A2
公开(公告)日:1992-01-15
2.1. Es ist problematisch manche Aminosäuren in Infusionslösungen oder Nährmedien in gelöster Form bereitzustellen, da entweder die Aminosäuren schlecht löslich oder in Lösung unbeständig sind. Letzteres gilt insbesondere auch für Dipeptide. Die neuen Dipeptidderivate sollen neben guter Löslichkeit eine gute Bioverfügbarkeit haben und stabil sein gegen Sterilisationsbedingungen.
2.2. Die neuen N-Acyldipeptide haben die Formel
R²-NH-CHR¹-CO-AS
wobei AS für eine schlecht lösliche bzw. in Lösung unbeständige natürliche Aminosäure, R¹ für einen Rest einer natürlichen Aminosäure und R² für einen Acylrest mit 1 bis 6 C-Atomen steht.
2.3. Quelle für C-terminale Aminosäuren in Mischungen bzw. Lösungen für die enterale oder parenterale (künstliche und diätische) Ernährung oder in Nährmedien für Zellkulturen.
Glutamine or glutamine-containing dipeptide in a specific dosage for the treatment of inflammation
申请人:Biotempt B.V.
公开号:EP2106791A1
公开(公告)日:2009-10-07
Described are methods of treating or preventing an inflammation by administering to a patient in need thereof a pharmacologic dose of glutamine or a glutamine-containing dipeptide in a pharmaceutically acceptable carrier, wherein said dose is selected from a range of 0.09 to 90mg glutamine per kg bodyweight of the patient.