1-7 SUBSTITUTED XANTHINE DERIVATIVES HAVING ANTIASTHMATIC ACTIVITY, THEIR SALTS PHYSIOLOGICALLY ACCEPTABLE, PHARMACEUTICAL COMPOSITION CONTAINING THEM AND PROCESS FOR THEIR PREPARATION
申请人:MALESCI ISTITUTO FARMACOBIOLOGICO S.p.A.
公开号:EP0531349A1
公开(公告)日:1993-03-17
US5314890A
申请人:——
公开号:US5314890A
公开(公告)日:1994-05-24
[EN] 1-7 SUBSTITUTED XANTHINE DERIVATIVES HAVING ANTIASTHMATIC ACTIVITY, THEIR SALTS PHYSIOLOGICALLY ACCEPTABLE, PHARMACEUTICAL COMPOSITION CONTAINING THEM AND PROCESS FOR THEIR PREPARATION
申请人:MALESCI ISTITUTO FARMACOBIOLOGICO S.P.A
公开号:WO1991017993A1
公开(公告)日:1991-11-28
(EN) This invention relates to xanthine derivatives having antiasthmatic activity and of general formula (I), wherein R is a linear or branched chain alkyl group of from one to six carbon atoms, and R1 is a linear or branched chain alkyl or hydroxyalkyl group of from one to six carbon atoms, with the proviso that R and R1 are never methyl groups simultaneously, their physiologically acceptable salts, their pharmaceutical compositions having antiasthmatic activity, as well as two processes for their preparation.(FR) Cette invention se rapporte à des dérivés de xanthine possédant une efficacité anti-asthmatique et de la formule générale (I), dans laquelle R représente un groupe alkyle à chaîne linéaire ou ramifiée comportant entre un et six atomes de carbone et R1 représente un groupe alkyle ou hydroxyalkyle à chaîne linéaire ou ramifiée comportant entre un et six atomes de carbone, sous réserve que R et R1 ne représentent jamais simultanément des groupes méthyle, leurs sels acceptables sur le plan physiologique, leurs compositions pharmaceutiques possédant une efficacité anti-asthmatique ainsi que deux procédés pour les préparer.
1-7 disubstituted xanthine derivatives having antiasthmatic activity,
申请人:Malesci Istituto Farmacobiologico S.p.A.
公开号:US05314890A1
公开(公告)日:1994-05-24
Xanthine derivatives having antiasthmatic activity are disclosed which have the following formula: ##STR1## where R is a linear or branched alkyl chain group of from one to six carbon atoms, R.sub.1 is a linear or branched alkyl or hydroxyalkyl group of from one to six carbon atoms. However, if R is methyl, then R.sub.1 is not methyl, ethyl or propyl; if R is ethyl, then R.sub.1 is not methyl or ethyl; and if R is methyl or n-butyl, then R.sub.1 is not 2-hydroxypropyl. Also disclosed are pharmaceutical compositions containing such xanthine derivatives.