N 7-Tosyltheophylline (TsTh): A Highly Efficient Reagent for the One-Pot Synthesis of N 7-Alkyltheophyllines from Alcohols
摘要:
A convenient and highly efficient one-pot N-alkylation of theophylline from alcohols via N-7-tosyltheophylline (TsTh) is described. In this protocol, the treatment of primary and/or secondary alcohols with a mixture of TsTh and 1,8-diazabicyclo[5.4.0]undec-7-ene in refluxing acetonitrile affords the corresponding N-7-alkyltheophylline in good to excellent yields; the reaction was optimized for solvent and base. This methodology is highly efficient for various structurally diverse primary and secondary alcohols. A plausible mechanism for the one-pot N-alkylation of theophylline with alcohols via TsTh has been suggested.
of an unnatural monoterpene skeleton through heteroarylative telomerization of isoprene with heterocycles. Under nickel catalysis, a series of cyclic monoterpene derivatives bearing quaternary carbon stereocentre are constructed with up to 98% yield and 97% enantiomeric excess. Preliminary mechanistic studies suggest this atom-economic reaction proceeds through an enantioselective dimerization of isoprene
Dermocosmetic or pharmaceutical use of a composition comprising at least one inhibitor of some chemoattractant cytokines
申请人:GREENPHARMA
公开号:US10828309B2
公开(公告)日:2020-11-10
The present invention relates to the cosmetic or pharmaceutical use for a composition comprising a salicylic or nicotinic acid derivative inhibiting chemokines, for preventing or treating chronic internal and/or external inflammatory conditions.
UTILISATION DERMOCOSMETIQUE OU PHARMACEUTIQUE D'UNE COMPOSITION CONTENANT AU MOINS UN INHIBITEUR DE CERTAINES CYTOKINES CHIMIO-ATTRACTANTES
申请人:Greenpharma S.A.
公开号:EP3197458A1
公开(公告)日:2017-08-02
DERMOCOSMETIC OR PHARMACEUTICAL USE OF A COMPOSITION COMPRISING AT LEAST ONE INHIBITOR OF SOME CHEMOATTRACTANT CYTOKINES
申请人:GREENPHARMA
公开号:US20170296547A1
公开(公告)日:2017-10-19
The present invention relates to the cosmetic or pharmaceutical use for a composition comprising a salicylic or nicotinic acid derivative inhibiting chemokines, for preventing or treating chronic internal and/or external inflammatory conditions.
[EN] DERMOCOSMETIC OR PHARMACEUTICAL USE OF A COMPOSITION CONTAINING AT LEAST ONE INHIBITOR OF CERTAIN CHEMOATTRACTANT CYTOKINES<br/>[FR] UTILISATION DERMOCOSMETIQUE OU PHARMACEUTIQUE D'UNE COMPOSITION CONTENANT AU MOINS UN INHIBITEUR DE CERTAINES CYTOKINES CHIMIO-ATTRACTANTES
申请人:GREENPHARMA SAS
公开号:WO2016046457A1
公开(公告)日:2016-03-31
La présente invention concerne l'utilisation cosmétique ou pharmaceutique d'une composition contenant un dérivé de la théophylline de formule (I) inhibant les chimiokines, pour prévenir ou traiter les affections inflammatoires chroniques internes et/ou externes. R représente un groupe alkyle, cycloalkyle ou alcényle, groupe dans lequel au moins un groupement -CH2- peut être remplacé par -0- ou peut être substitué par au moins un radical choisi parmi les radicaux alkyle, hydroxy et alcoxy.