C-terminal modified (N-substituted)-2-indolyl dipeptides as inhibitors of the ICE/ced-3 family of cysteine proteases
申请人:——
公开号:US20020025935A1
公开(公告)日:2002-02-28
This invention is directed to novel (N-substituted) indole ICE/ced-3-inhibitor compounds. The invention is also directed to pharmaceutical compositions of such indole compounds, plus the use of such compositions in the treatment of patients suffering inflammatory. autoimmune and neurodegenerative diseases, for the prevention of ischemic injury.
C-terminal modified (N-substituted)-2-indolyl dipeptides as inhibitors of the ice/ced-3 family of cysteine proteases
申请人:Idun Pharmaceuticals, Inc.
公开号:US20030119748A1
公开(公告)日:2003-06-26
This invention is directed to novel (N-substituted) indole ICE/ced-3-inhibitor compounds. The invention is also directed to pharmaceutical compositions of such indole compounds, plus the use of such compositions in the treatment of patients suffering inflammatory, autoimmune and neurodegenerative diseases, for the prevention of ischemic injury.
The P4 region of a series of oxamyl dipeptide caspase inhibitors was optimized by the combination of anti-apoptotic activity in the Jurkat/Fas (JFas) cellular assay and membrane permeability in the PAMPA assay. Two highly potent anti-apoptotic agents with moderate membrane permeability, 29 and 36, showed strong in vivo efficacy in a murine model of alpha-Fas-induced liver injury. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of K[4-ROC6F4BF3] from potassium pentafluorophenyltrifluoroborate and O-nucleophiles
作者:Anton Yu. Shabalin、Nicolay Yu. Adonin、Vadim V. Bardin、Sergey A. Prikhod’ko、Maria N. Timofeeva、Maria V. Bykova、Valentin N. Parmon
DOI:10.1016/j.jfluchem.2013.01.020
日期:2013.5
A new route to potassium polyfluoroaryltrifluoroborates, K[4-ROC6F4BF3], consisting in the nucleophilic alkoxydefluorination of K[C6F5BF3] with MOR (M = K, Na) in a polar aprotic solvent is suggested. Reaction of K[C6F5BF3] with KO-t-Bu proceeds smoothly at 25 degrees C in DME, but the attempted alkoxydefluorination of K[C6F5BF3] with other NaOR at 30 degrees C in DME failed. A series of K[4-ROC6F4BF3] (R approximate to Me, Et, Pr, i-Pr, Bu, PhCH2) is prepared using the corresponding sodium alkoxides in DMF at 130 degrees C in 80-90% isolated yield. Salt K[4-CH2=CHCH2OC6F4BF3] is prepared at 100 degrees C whereas at 130 degrees C formation of 2,3,5,6-C6F4HOCH2CH=CH2 occurs. Salt K[4-PhOC6F4BF3] is obtained in 82% yield using KOPh (2 equivalents) in DMSO at 130 degrees C. (C) 2013 Elsevier B.V. All rights reserved.