Picking the S1, S1′ and S2′ pockets of matrix metalloproteinases. A niche for potent acyclic sulfonamide inhibitors
摘要:
A series of acyclic hydroxamic acids harboring strategically placed alpha-arylsulfonamido and thioether groups was synthesized and found to be potent inhibitors of various MMPs. An unprecedented cleavage of t-butyl hydroxamates to hydroxamic acids was found. (C) 1999 Elsevier Science Ltd. All rights reserved.
reaction with formaldehyde in acetic acid to give (RS)-1,3-thiazane-4-carboxylic acid monohydrate [(RS)-THA·H2O]. An asymmetrictransformation of (RS)-THA·H2O was achieved via salt formation with optically active tartaric acid in the presence of salicylaldehyde in acetic acid. The (R)- and (S)-THA obtained, respectively, from the salt of (R)-THA with (2R, 3R)-tartaric acid and its enantiomeric salt were
New s-adenosyl-L-methionine analogues with extended activated groups for transfer by methyltransferases
申请人:RWTH Aachen
公开号:EP1712557A1
公开(公告)日:2006-10-18
S-Adenosyl-L-methionine analogues of formula (I)
wherein wherein R comprises a carbon-carbon double bond, carbon-oxygen double bond, carbon-sulfur double bond, carbon-nitrogen double bond, a carbon-carbon triple bond, carbon-nitrogen triple bond or an aromatic carbocyclic or heterocyclic system in β-position to the sulfonium center,
X- is an organic or inorganic anion carrying one or more negative charges,
Z is -CR1R2-, -O-, -S- or -NR3- and
R1, R2and R3 are independently selected from H, D and C1 - C12 alkyl.
PREPARATION OF FUNCTIONALIZED POLYPEPTIDES, PEPTIDES, AND PROTEINS BY ALKYLATION OF THIOETHER GROUPS
申请人:The Regents of the University of California
公开号:US20150057433A1
公开(公告)日:2015-02-26
Reagents are disclosed for chemoselective tagging of methionine residues in peptides and polypeptides, subsequent bioorthogonal tag functionalization, and cleavage of the tags when desired to regenerate unmodified samples. This method compliments other peptide tagging strategies and adds capability for tag removal, which may be useful for release of therapeutic peptides from a carrier, or release of tagged protein digests from solid supports.
The present invention provides a method of producing a peptidyl aldehyde derivative of the formula (II)
wherein A is acyl derived from amino acid, and R1 and R2 are different and one is hydrogen atom and the other is optionally substituted lower alkyl, which includes oxidizing a peptidyl alcohol derivative of the formula (I)
wherein each symbol is as defined above, with DMSO in the presence of diisopropylethylamine. According to the present invention, formation of a stereoisomer can be prevented or suppressed.
Novel carboxyalkyl peptides and thioethers and ethers of peptides as antihypertensive agents
申请人:UNIVERSITY OF MIAMI
公开号:EP0048159A2
公开(公告)日:1982-03-24
Novel inhibitors of angiotensin converting enzyme are disclosed which have the general formula
Wherein X = X, O or NR9, R4 and R5 form with -N-C- a 4-6 membered ring structure as described and the other R substituents are selected from a variety of disclosed groups.
已公开的新型血管紧张素转换酶抑制剂具有通式 其中 X = X、O 或 NR9,R4 和 R5 与 -N-C- 形成所述的 4-6 分子环结构,其他 R 取代基选自已公开的各种基团。