Synthesis of peptides containing 2,3-methanoaspartic acid
摘要:
Simple N-protected di- and tri-peptide methyl esters incorporating (+/-)(Z)-2,3-methanoaspartic acid were prepared by oxidation of the corresponding (+/-)-(Z)-2,3-methanohomoserine-derived peptides. (C) 1997 Published by Elsevier Science Ltd.
Ethylene Biosynthesis part 10. Synthesis and study of racemic, (1R, 2S)-, and (1S, 2R)-1-Amino-2-(hydroxymethyl)cyclopropanecarboxylic Acid
作者:Michael C. Pirrung、Steven E. Dunlap、Uwe P. Trinks
DOI:10.1002/hlca.19890720618
日期:1989.9.20
The preparation of optically active 1-amino-2-(hydroxymethyl)cyclopropanecarboxylic acid has been achieved by a route involving cycloalkylation of dimethyl malonate with epichlorohydrin and subsequent Hofmann rearrangement. The reaction of epichlorohydrin with nucleophiles may occur al either electrophilic site, epoxide or halide. Based on the absolute configuration of the starting materials and the
Enantioselective synthesis of cyclopropane aminoalcohols containing quaternary stereogenic centers
作者:Joan Rifé、Rosa M. Ortuño
DOI:10.1016/s0957-4166(99)00463-2
日期:1999.10
Some title compounds have been synthesized in enantiomerically pure form starting from d- or l-glyceraldehyde as chiral precursors. A new synthesis of (+)-(Z)-methanohomoserine, one of the key intermediates employed, is also described. The target molecules are densely functionalized. Thus, in addition to one or two hydroxyl groups on a side-chain, an amino group is attached to a quaternary carbon of
Inhibitors of factor Xa and other serine proteases involved in the coagulation cascade
申请人:Pfizer Inc.
公开号:US20040167131A1
公开(公告)日:2004-08-26
This invention discloses amino acid derivatives which display inhibitory effects on the serine protease factor Xa. The invention also discloses pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable compositions comprising the compounds or their salts, methods for the preparation of the compounds, and methods of using them as therapeutic agents for treating or preventing disease states in mammals characterized by abnormal thrombosis.