Toward the synthesis of the antibiotic tetrodecamycin
摘要:
We report here a short approach to a tricyclic substructure of tetrodecamycin exhibiting a unique ring skeleton utilising an acid catalysed ring closure as the key step. In addition an efficient three-step synthesis of 5-alkylidene 4-methoxy-2(5H)-furanones starting from 4-methoxy-2(5H)-furanone is described. (C) 2000 Elsevier Science Ltd. All rights reserved.
This invention relates to new tetronic and tetramic acid derivatives with beta-secretase inhibitory activity of formula I:
wherein R1, R2, R3, R4, R5, R5′, R6 and R6′ are as defined hereinabove, to processes for their preparation, compositions containing said tetronic and tetramic acid derivatives and their use in the treatment and prevention of diseases modulated by an inhibitor of β-secretase, such as Alzheimer's disease.
5-Arylalkyl-4-alkoxy-2(5H)-furanone, Zwischenprodukte und Verfahren zu ihrer Herstellung sowie ihre Anwendung als therapeutische Wirkstoffe
申请人:Dr. Willmar Schwabe GmbH & Co.
公开号:EP0247320B1
公开(公告)日:1990-12-27
TETRONIC AND TETRAMIC ACIDS AS INHIBITORS OF BETA-SECREASE
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP1689729A1
公开(公告)日:2006-08-16
US4855320A
申请人:——
公开号:US4855320A
公开(公告)日:1989-08-08
[EN] TETRONIC AND TETRAMIC ACIDS AS INHIBITORS OF BETA-SECREASE<br/>[FR] ACIDES TETRONIQUES ET TETRAMIQUES UTILISES EN TANT QU'INHIBITEURS DE LA BETA-SECRETASE
申请人:HOFFMANN LA ROCHE
公开号:WO2005058857A1
公开(公告)日:2005-06-30
This invention relates to new tetronic and tetramic acid derivatives with beta-secretase inhibitory activity of formula (I), wherein RI, R2, R3, R4, R5, R5', R6 and R6' areas defined hereinabove, to processes for their preparation, compositions containing said tetronic and tetramic acid derivatives and their use in the treatment and prevention of diseases modulated by an inhibitor of ß-secretase, such as Alzheimer's disease.