An unprecedented photoinduced azide–alkene cycloaddition has been developed, the key elements of which include the photoisomerization of cis-cycloheptenone to trans-cycloheptenone, strain-promoted 1,3-dipolar cycloaddition of trans-cycloheptenone with azide, and aerobic oxidative aromatization of the resulting 1,2,3-triazoline. The newly developed photoclick reactions display several appealing features
FeCl 3 -Promoted regioselective ring-opening reactions of cyclopropyl trimethylsilyl ethers, obtained by SmI 2 reduction followed by silylation with Me 3 SiCl of bromoalkyl ketones and acyl chloride, were performed. Eventually, the sequential reduction and oxidation reactions starting from bromoalkyl ketones to give ring-expanded enones were achieved in one-pot.
Heterocyclische Siebenring-Verbindungen, XXVIII. Über 5-Acetoxy- und 5-Methoxy-1-benzothiepin sowie analoge 1-Benzoxepine
作者:Hans Hofmann、Hamid Djafari
DOI:10.1002/jlac.198519850321
日期:1985.3.12
Die monoacetoxy- und monomethoxysubstituierten 1-Benzothiepine 7 bzw. 8 sowie die analogen 1-Benzoxepine 9 und 10 wurden aus den Siebenringketonen 1 bzw. 2 über die entsprechenden 2,5-Dihydroketone 5 bzw. 6 dargestellt. Sie unterscheiden sich in Bezug auf die thermische Stabilität nicht wesentlich von den früher beschriebenen 4-Phenylanalogen.
死monoacetoxy- UND monomethoxysubstituierten 1-苯并硫7 bzw. 8 sowie模具analogen 1- Benzoxepine 9 UND 10 wurden AUS巢穴Siebenringketonen 1 bzw. 2黚模具entsprechenden 2,5- Dihydroketone 5 bzw. 6 dargestellt。Bezug的Sie unterscheiden sich的热稳定性和抗化学作用的4-苯基苯胺基。
Synthesis of novel four-fused-ring chromeno-benzoxepinones from salicylaldehydes and 1-benzoxepin-5-ones via the oxa-Michael reaction/aldol condensation
作者:Po-Yuan Chen、Chia-Ying Zhon、Hsing-Ming Chen、Chih-Hui Yang、Tzu-Pin Wang、Eng-Chi Wang
DOI:10.3998/ark.5550190.0014.303
日期:——
In this study, the synthesis of a series of novelfour-fused-ringchromeno-benzoxepinones is described. The reaction of 1-benzoxepin-5-ones with salicylaldehydes mediated by 1,4diazabicyclo[2,2,2]octane (DABCO) involves domino reactions including an oxa-Michaelreaction, an aldolcondensation and dehydration in a one-pot sequence to yield the target compounds in fairly good yields.
[EN] CHEMOKINE RECEPTOR ANTAGONISTS AND METHODS OF USE THEREFOR<br/>[FR] ANTAGONISTES DU RECEPTEUR DE CHEMOKINE ET LEURS PROCEDES D'UTILISATION
申请人:MILLENIUM PHARMACEUTICALS, INC.
公开号:WO1999037651A1
公开(公告)日:1999-07-29
(EN) Disclosed are novel compounds and a method of treating a disease associated with aberrant leukocyte recruitment and/or activation. The method comprises administering to a subject in need an effective amount of a compound represented by structural formula (I) and physiologically acceptable salts thereof.(FR) L'invention concerne de nouveaux composés et un procédé servant à traiter une maladie associée soit à un recrutement, soit à une activation aberrants de leucocytes. Ce procédé consiste à administrer à un patient une quantité efficace d'un composé représenté par la formule (I) ainsi que de ses sels acceptables sur le plan physiologique.