Biomimetic Formation of Macrocyclic Spermine Alkaloids
摘要:
Dihydroxyverbacine (10), a precursor for oxidative phenol coupling. was obtained via (+/-)-buchnerine (14). whose synthesis is described. The oxidizing system hemin (ferriprotoporphyrin IX chloride)/H2O2 promoted intramolecular coupling of 10 to give the alkaloids aphelandrine (1). orantine (2), and chaenorpine (7). The alkaloids were identified by on-line coupled HPLC and atmospheric-pressure chemical-ionization (APCI) mass spectrometry.
CuI-Catalyzed Coupling Reaction of β-Amino Acids or Esters with Aryl Halides at Temperature Lower Than That Employed in the Normal Ullmann Reaction. Facile Synthesis of SB-214857
作者:Dawei Ma、Chengfeng Xia
DOI:10.1021/ol016258r
日期:2001.8.9
CuI-catalyzed coupling reaction of aryl halides with beta-amino acids or beta-amino esters is completed at 100 degrees C in 48 h, which indicates that the structure of the beta-amino acid has an accelerating effect for the Ullmann-type arylamination reaction. This coupling reaction can be used to prepare enantiopure N-aryl beta-amino acids. An efficient syntheticroute to SB214857, a potent GPIIb/IIIa
Substituted tetrahydropyrrolo[1,2-a]pyrazines as alpha v integrin inhibitors
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US11292802B2
公开(公告)日:2022-04-05
The disclosure relates to compounds of formula I: Formula I which inhibit αV-containing integrins, and includes pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with dysregulation of αV-containing integrins, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders.
本公开涉及式 I 的化合物:抑制含αV整合素的式I化合物,包括包含这些化合物的药物组合物和治疗与含αV整合素失调相关的疾病、紊乱或病症的方法,如病理性纤维化、移植排斥、癌症、骨质疏松症和炎症性疾病。
Design and Synthesis of Potent and Selective Inhibitors of Integrin VLA-4
The synthesis and identification of a novel series of inhibitors of integrin VLA-4 are described. Their in vitro activity and selectivity against closely related integrins are also presented. (C) 2001 Elsevier Science Ltd. All rights reserved.
PYRROLOPYRAZINE DERIVATIVES AS ALPHA V INTEGRIN INHIBITORS
申请人:BRISTOL-MAYERS SQUIBB COMPANY
公开号:US20210163501A1
公开(公告)日:2021-06-03
The disclosure relates to compounds of formula I: Formula I which inhibit α
V
-containing integrins, and includes pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with dysregulation of αV-containing integrins, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders.