.delta.-Amino-.gamma.-hydroxy-.omega.-aryl-alkanoic acid amides of formula I ##STR1## and the salts thereof, have renin-inhibiting properties and can be used as antihypertensive medicinal active ingredients.
[EN] METHODS OF TREATING ALZHEIMER'S DISEASE USING ARYL ALKANOIC ACID AMIDES<br/>[FR] METHODES DE TRAITEMENT DE LA MALADIE D'ALZHEIMER PAR DES AMIDES D'ACIDE ARYL ALCANOIQUE
申请人:ELAN PHARM INC
公开号:WO2003103653A1
公开(公告)日:2003-12-18
Disclosed are methods for treating Alzheimer’s disease, and other diseases,
and/or inhibiting beta-secretase enzyme, and/or inhibiting deposition of
A beta peptide in a mammal, by use of compounds of formula 1 (1) wherein the variables
R1-R8 and X are defined herein.
which contains fragmentsD and C. After extension at the carboxyl function by esterification with the hydroxy ester 10, the seco compounds 37 and 42 were obtained. Ring closure was achieved by macrolactamization in the presence of TBTU as condensing agent. This work features a streamlined synthesis of the hydroxy ester 10, a short synthesis of the amino acid 14 by enantioselective alkylation of the
Asymmetric Syntheses of Potent Antitumor Macrolides Cryptophycin B and Arenastatin A
作者:Arun K. Ghosh、Alexander Bischoff
DOI:10.1002/ejoc.200300814
日期:2004.5
Efficient and highlystereoselective syntheses of cryptophycin B and arenastatin A, potent cytotoxic agents, are described. An ester-derivedtitaniumenolate mediated syn-aldol reaction was employed to generate the stereocenters C-5 and C-6. The route is convergent and provides a convenient access to the synthesis of structural variants of cryptophycins as well as members of its family.
描述了有效的细胞毒剂隐藻素 B 和阿那他丁 A 的高效且高度立体选择性的合成。采用酯衍生的钛烯醇化物介导的顺醛醇反应来生成立体中心C-5和C-6。该路线是收敛的,为合成隐藻素及其家族成员的结构变体提供了方便的途径。
A Convergent Synthesis of (+)-Cryptophycin B, a Potent Antitumor Macrolide from <i>Nostoc</i> sp. Cyanobacteria
作者:Arun K. Ghosh、Alexander Bischoff
DOI:10.1021/ol000058i
日期:2000.6.1
text] An efficient and highly stereoselective synthesis of cryptophycin B (2), a potent cytotoxic agent, is described. The ester-derived titanium-enolate-mediated syn-aldol reaction was employed to generate the stereocenters C(5) and C(6). The route is convergent and provides a convenient access to the synthesis of structural variants of cryptophycin B as well as members of its family.