Total synthesis of daphneticin, a coumarinolignoid.
作者:HITOSHI TANAKA、ICHIRO KATO、KAZUO ITO
DOI:10.1248/cpb.34.628
日期:——
Daphnetin (3) was transformed with excess benzyl chloride into 7, 8-dibenzyloxycoumarin (4), which on treatment with trifluoroacetic acid in benzene or aluminum chloride in benzene gave 8-benzyloxy-7-hydroxycoumarin (5) in good yield. Condensation of 5 and ethyl 2-bromo-3-(4-acetoxy-3, 5-dimethoxyphenyl)-3-oxopropionate (9), prepared from ethyl benzylsyringoylacetate (7) in two steps, in the presence of sodium hydride afforded 10 in good yield, and the condensation product (10) was then reduced with lithium borohydride to yield a mixture of the diols (11a, b). Treatment of the diols with 36% hydrochloric acid in acetic acid provided daphneticin (1) in 68% yield.
[EN] THERAPEUTIC RELEASE AGENTS<br/>[FR] AGENTS DE LIBÉRATION THÉRAPEUTIQUES
申请人:ORGANON NV
公开号:WO2008100977A2
公开(公告)日:2008-08-21
[EN] Pharmacological inhibition of fatty acid amide hydrolase (FAAH) activity leads to increased levels of fatty acid amides. Esters of alkylcarbamic acids are disclosed that are inhibitors of FAAH activity. Compounds disclosed herein inhibit FAAH activity. Described herein are processes for the preparation of esters of alkylcarbamic acid compounds, compositions that include them, and methods of use thereof. [FR] L'inhibition pharmacologique de l'activité de l'amide hydrolase d'acides gras (FAAH) entraîne une augmentation des taux d'amides d'acides gras. L'invention concerne des esters d'acides alkylcarbamiques qui constituent des inhibiteurs de l'activité de la FAAH. Les composés décrits inhibent l'activité de la FAAH. L'invention concerne aussi des procédés de préparation d'esters de composés d'acides alkylcarbamiques, des compositions renfermant ceux-ci et des procédés d'utilisation de celles-ci.
[EN] SESQUITERPENE LACTONES AS POTENT AND BROAD SPECTRUM ANTIVIRAL COMPOUNDS AGAINST ALL GENOTYPES OF HEPATITIS C VIRUS (HCV)<br/>[FR] LACTONES SESQUITERPÉNIQUES EN TANT QUE COMPOSÉS ANTIVIRAUX PUISSANTS ET À LARGE SPECTRE CONTRE TOUS LES GÉNOTYPES DU VIRUS DE L'HÉPATITE C (VHC)
申请人:ELSEBAI MAHMOUD FAHMI
公开号:WO2016169573A1
公开(公告)日:2016-10-27
The present invention relates to potent HCV entry inhibitors (cynaropicrin and grosheimol), in addition to mono-caffoeylquinic acid derivatives which have also anti-HCV activity but less than cynaropicrin and grosheimol.
Lin, Lee-Juian; Cordell, Geoffrey A., Journal of Chemical Research, Miniprint, 1988, # 12, p. 3052 - 3080