Pheromonsynthesen-Modellreaktionen zur Synthese von Polyether-Antibiotika
摘要:
Ein allgemeines,konvergentes Schema zur Synthese von Spiroketalen wird vorgestellt。Die Hetero-Diels-Alder-Reaktion zwischen einem exocyclischen Enolether 5和einerα ,β-ungesättigtenCarbonylverbindungführtzu Spiroalkenen 6。Diese lassen sich durch氧化Ringkontraktion oder Reduktion zu 7 oder 8,geminsinsamen Strukturelementen verschiedener聚醚-Antibiotika和Insekteninhaltsstoffe,umsetzen。型号为Sequenz的双模,2-甲基四氢吡
A convergent scheme for the synthesis of spiroketals and the synthesis of (±)-chalcogran
作者:Robert E. Ireland、Dieter Häbich
DOI:10.1016/s0040-4039(00)92727-8
日期:——
The hetero-Diels-Alder condensation between furanoid and pyranoid exocyclic vinylethers establishes the spiroketal system and subsequent oxidative ring contraction leads to 1.6-dioxaspiroalkane carboxylic acids. The latter are useful subunits for polyether antibiotic synthesis.
Isolation and synthesis of 3- and 4-hydroxy-1,7-dioxaspiro[5.5]undecanes from the olive fly (Dacus oleae)
作者:Raymond Baker、Richard H. Herbert、Andrew H. Parton
DOI:10.1039/c39820000601
日期:——
Two novel hydroxyspiroacetals, 3- and 4-hydroxy-1,7-dioxaspiro[5.5]undecane have been isolated from the rectal gland of the female olivefly (Dacusoleae) and a stereoselective synthesis of the latter developed.
Baker, Raymond; Herbert, Richard H., Journal of the Chemical Society. Perkin transactions I, 1987, p. 1123 - 1128
作者:Baker, Raymond、Herbert, Richard H.
DOI:——
日期:——
Compositions and methods for the treatment of hypertension
申请人:Zamir Nadav
公开号:US20050272808A1
公开(公告)日:2005-12-08
The present invention relates to use of 1,7-dioxaspiro[5.5]undecane and derivatives thereof for the preparation of a medicament for the treatment or prevention of hypertension. The invention also provides a method for treatment or prevention of hypertension using a medicament comprising 1,7-dioxaspiro[5.5]undecane or a derivative thereof as an active ingredient, such that the hypertension is treated or prevented, as the case may be.
[EN] COMPOSITIONS AND METHODS FOR TREATMENT OF MALE ERECTILE DYSFUNCTION (ED)<br/>[FR] COMPOSITIONS ET PROCEDES POUR LE TRAITEMENT DE DYSFONCTIONNEMENT DE L'ERECTION
申请人:DARLEY PHARMACUETICALS LTD
公开号:WO2007004226A2
公开(公告)日:2007-01-11
[EN] The present invention relates to use of 1,7-dioxaspiro[5.5]undecane and related compounds of the general formula (I) for the preparation of a pharmaceutical composition for the treatment or prevention of erectile dysfunction (ED). The invention further provides a method for the treatment or prevention of ED by administering 1,7?dioxaspiro[5.5]undecane or a related compound of the general formula (I) as an active ingredient, thereby treating and/or preventing ED. [FR] Utilisation de 1,7-dioxaspiro[5.5]undécane et de composés connexes de formule générale (I) pour l'élaboration de composition pharmaceutique intervenant dans le traitement ou la prévention de dysfonctionnement de l'érection, et procédés correspondants qui reposent sur l'administration de 1,7dioxaspiro[5.5]undécane ou de composé connexe de formule générale (I) comme principe actif, pour le traitement et/ou la prévention de l'affection considérée..